bluuebunny/crossref_metadata_2025_split huggingface dataset:
On Parametric Analysis of Cold Spray of Metallic Coating Onto Ceramic Substrates Using Ceramic Damage Evolution Approach
Authors: EcheverrÍa Marco José , Quintero Pedro O. , Ozdemir Ozan , Ibitayo Dimeji , Champagne Victor K. 
Published: January 2023

Abstract
In this work, a fine copper layer was deposited on an aluminum nitride substrate via cold spraying. Parametric modeling was used to develop a parameter selection map that helped guide preliminary experiments to validate the model for different substrate surfaces, nozzle geometries, gas dynamics, standoff distances, and deposition angles. Further modifications were then made to include failure prediction based on particle impact, leading to the deposition of well-adhered cold-sprayed copper on a ceramic surface.
Cold Spray Metal Coating of Wood for Cabinet Making Applications
Authors: Lomonaco Patrizio , Debray Antoine , Delloro Francesco , Jeandin Michel , Favini Bernardo , Bousquet Arnaud , Leprize’ Seven 
Published: January 2023

Abstract
This study assesses the feasibility of cold spraying metal onto wood for commercial applications. It was found that particle adhesion and coating build-up differ significantly from the standard case of spraying metal on metal. Phenomena such as fiber rupture and buckling, pore filling, and particle anchoring required a new approach for process development and verification. First, a microscale analysis of the unique features of wood was necessary to define the deposition surface. Next, a wide range of cold spray tests were conducted to obtain metal coatings on four species of wood. To better understand the dependency of deposition efficiency on particle state conditions, a CFD models and FEA simulations were used to investigate single and multi-particle impacts on local wood structures as observed in SEM and microtomography images. A conventional pull-off test was used to collect adhesion strength data and a numerical counterpart of the test has been developed, making it possible to compare macroscopic adhesion behavior of real and virtual interfaces.
Analysis of Interface Delamination of Cold Sprayed Coatings Due to Thermal Cycling
Authors: Lin Enqiang , Nault Isaac , Champagne Victor K. , Nardi Aaron , Müftü Sinan 
Published: January 2023

Abstract
This study investigates the effect of thermal cycling on cold-spray chromium coatings deposited on steel substrates. First, equilibrium stress states are determined for different coating thicknesses. Next, the potential for crack initiation and growth is simulated based on periodic heating and cooling cycles. The corresponding crack driving forces are characterized using interface stresses and energy release rate as a function of the thermal cycles. The effects of coating thickness, embedded microcracks, and initial residual stress on the driving forces are investigated systematically to demonstrate the risk of coating fracture and delamination.
Impact Mechanics of Spherical Metallic Particles with Uniformly Distributed Porosity
Authors: Chen Qiyong , Lin Enqiang , Champagne Victor K. , Nardi Aaron , Müftü Sinan 
Published: January 2023

Abstract
In this study, finite element models are used to simulate the impact of porous WC-Co and Al particles cold sprayed onto substrates of the same materials. Effects of high strain rate, heat generation due to plasticity, interfacial friction, heat transfer, and material damage and failure are taken into account as are differences in the initial kinetic energy and strength of the materials. It was found that the influence of porosity increases with impact velocity and that the pores channel stress waves in unique ways not observed for solid particles. The results suggest that using porous particles for solid-state consolidation, as in cold spraying, could have advantages in terms of energy dissipation, although further investigation is required.
Study of Atmospheric Plasma Parameters for Denser Bioactive Glass Coatings
Authors: Rojas O. , Prudent M. , López M.E. , Vargas F. , Ageorges H. 
Published: January 2023

Abstract
This study assesses the influence of atmospheric plasma spraying parameters on splat stacking and porosity formation in bioglass coatings prepared from commercial powders. Coating samples were deposited on stainless steel substrates using spraying parameters established through numerical simulations. Different Ar-H2 mixtures were used as the forming gas, and plasma current and spraying distance were varied. Coating microstructure and phase composition were determined by SEM and XRD analysis. Although numerical simulations for each parameter set predicted a suitable Sommerfeld number for proper splat stacking, Na2O and P2O5 volatilization occurred during spraying, promoting the formation of porosity in the coatings. Denser coatings were obtained, however, by adjusting the gas mixture ratio, plasma current, and spraying distance such that enthalpy of the plasma jet is sufficient to overcome the glass transition temperature of the powder and at the same time avoid the evaporation of volatile oxides.
Investigation on Microstructural Properties of 3D Printed and Thermally Sprayed Alumina
Authors: Azarmi Fardad , Tangpong X.W. 
Published: January 2023

Abstract
This study compares the microstructure of Al2O3 coatings produced by detonation gun spraying (DGS) and laser stereolithography (SLA). The SLA samples mostly consisted of alumina and voids, while the DGS-deposited alumina contained additional features such as splats, pores, cracks, and boundaries. DGS deposits were also denser with about 3% porosity compared to 8% porosity in the SLA samples. EDS analysis showed that both coatings contained only aluminum and oxygen, although additional carbon was detected in the SLA samples, indicating the presence of residual binder (resin based) material. XRD analysis revealed a mixture of α and γ-Al2O3 phases in the DGS coatings, but no phase change in the SLA samples.
Investigation on Relationship Between Microstructural Characteristics and Mechanical Properties of Wire Arc Sprayed Zn-Al Coating
Authors: Darabi Amir , Azarmi Fardad , Huang Ying 
Published: January 2023

Abstract
The aim of this study is to characterize the mechanical behavior of wire-arc sprayed Zn-Al coatings and correlate the results with microstructure via computational techniques. High-resolution microstructural images obtained by SEM were imported into NIST-developed FEA software, which calculates macroscale properties based on user-selected features such as voids, pores, cracks, and splat boundaries. To assess the validity of the approach, elastic modulus was measured various ways and the results compared to the simulated value. Resonant frequency analysis provided the most accurate measurement, which was found to be closest to the simulated value.
The Effect of Electromechanical Treatment on Structure and Wear Resistance of the Plasma Sprayed Ni Coating
Authors: Ivannikov Yu. , Kalita V.I. , Komlev D.I. , Radyuk A.A. , Prozhega M.V. 
Published: January 2023

Abstract
The aim of this study is to evaluate the effect of electromechanical treatment on the structure and wear behavior of plasma-sprayed nickel coatings. The coatings were air plasma sprayed on low carbon steel substrates, then electromechanically treated using different values of current density. Erosion resistance was assessed based on volume loss and coating microstructure and phase composition were evaluated via SEM and XRD. Erosion mechanisms were compared by analyzing coating cross-section and surface microstructures and wear resistance was associated with features such as defects, porosity, and cracks.
The Development of Next Generation Wear Plate Overlays Using Big Data
Authors: Vecchio James 
Published: January 2023

Abstract
This study shows how data-driven modeling tools aid in the development of alloys that meet specific processing, property, and performance requirements. By leveraging a “big data” approach, two new alloys were designed that outperform commonly used materials in hardfacing and wear plate overlay applications. Over one million alloy compositions were analyzed to find two with the right combination of matrix and hard phases to provide the desired level of impact and abrasion resistance. The difference between the two alloys is in their matrix phase; one being austenitic, which has higher toughness, the other being martensitic, which has higher resistance to abrasive wear.
Toward Durable Thermal Barrier Coating with Low Thermal Conductivity Superiority: Material Design, Process Optimization and Performance Evaluation
Authors: Ma Xinqing , Rivellini Kristina , Ruggiero Peter , Wildridge George 
Published: January 2023

Abstract
The aim of this work is to find a path toward a thermal barrier coating (TBC) that is more thermally stable and less thermally conductive than current 8YZS coatings. The concept of dual-phase composite ceramics is proposed in an effort to combine the desirable attributes of unique phase constitution, low conductivity, and high ceramic fracture toughness. In addition, efforts are made to optimize the spraying process for low-k ceramic topcoats by controlling the effect of key parameters on porosity, deposition rate, and deposition efficiency. Isothermal oxidation and thermal cycling tests are conducted to evaluate the performance of the low-k TBCs with promising results.
Particle Size Effect on Gd2O3 Preferential Evaporation During Plasma Spraying of Gd2Zr2O7
Authors: Kou Cong-Cong , Chen Xu , Zhang Shan-Lin , Li Cheng-Xin , Yang Guan-Jun , Li Chang-Jiu 
Published: January 2023

Abstract
Rare-earth complex oxide ceramics are promising candidate materials for next-generation thermal barrier coatings due to their low thermal conductivity and phase stability. During plasma spraying, the component with a higher vapor pressure may experience severe preferential vaporization, resulting in significant composition change from the starting powder. In this study, Gd2Zr2O7 (GZO) powder with a hollow spherical structure is used as the feedstock material to assess the vaporization behavior of Gd2O3 during atmospheric plasma spraying (APS). Isolated Gd2Zr2O7 splats with regular disc shapes in different sizes were deposited on stainless steel substrates at a deposition temperature of 300 °C to study the effects of particle size on vaporization loss. The elemental composition of each splat was analyzed by EDS, and the ratio of Gd to Zr in different splats with different diameters was obtained. The results show that the vaporization loss of Gd increases markedly with decreasing particle size due to the preferential vaporization of Gd2O3. Using Gd2Zr2O7 powders of a certain size can reduce Gd loss, although the effect is determined by molten droplet size rather than apparent powder particle size.
Solid State Fermentation of Turmeric Rhizomes with Aspergillus SP. To Improve Yield and Composition of Extracted Turmeric Oil
Authors: Abduh Muhammad Yusuf , Ramawati Asri Ifani , Komariyah Tinta , Theda Yohanes 
Published: January 2023

This research aimed to determine the role of Aspergillus awamori, Aspergillus niger, and Aspergillus oryzae in degrading starch on turmeric rhizome substrate to increase the yield of turmeric oil. The substrate in the form of turmeric rhizome was given additional yeast extract of 10% weight per volume to meet the nutritional needs of fungal growth. The fungal concentration used in inoculation was 5x107 cells/ml. The solid-state fermentation process was carried out in dark conditions (~0 W), temperatures of 25–28 ºC, 99% humidity, and aeration (3.5 L/min). Turmeric oil was isolated using a steam distillation method for three hours, with the substrate moisture content of 68–71% and a substrate–water ratio of 1:5. The biodegradation process was conducted for 11 days. The starch content and turmeric oil yield was determined during the fermentation particularly on days 7, 9, and 11. The results showed that the biodegradation process of starch in solid-state fermentation succeeded in increasing the yield of turmeric oil. Aspergillus awamori showed the most desirable starch degradation activity by 62.5% to 2.9% wet weight on the 11th day of fermentation. Aspergillus oryzae had the most positive effect, nearly doubling the turmeric oil yield to 3.17% dry weight after 11th day of fermentation. The main constituents of turmeric oil are ?-turmerone, ?-turmerone, and ar-turmerone.
ABSTRAK: Penelitian ini bertujuan bagi mengkaji peranan Aspergillus awamori, Aspergillus niger, dan Aspergillus oryzae dalam mendegradasikan kanji pada substrat rizom kunyit bagi meningkatkan hasil minyak kunyit. Substrat dalam bentuk rizom kunyit telah diberi tambahan ekstrak yis 10% mengikut berat setiap isipadu bagi memenuhi keperluan nutrisi pertumbuhan kulat. Kepekatan kulat yang digunakan dalam inokulasi adalah 5x107 sel/ml. Proses penapaian berkeadaan pepejal telah dijalankan dalam keadaan gelap (~0 W), suhu 25–28 ºC, kelembapan 99%, dan pengudaraan (3.5 L/min). Minyak kunyit diasingkan menggunakan kaedah penyulingan wap selama tiga jam, dengan kandungan lembapan substrat 68-71% dan nisbah substrat-air 1:5. Proses biodegradasi dijalankan selama 11 hari. Kandungan kanji dan hasil minyak kunyit ditentukan semasa penapaian terutamanya pada hari ke-7, 9, dan 11. Hasil kajian menunjukkan bahawa proses biodegradasi kanji dalam penapaian berkeadaan pepejal berjaya meningkatkan hasil minyak kunyit. Aspergillus awamori menunjukkan aktiviti degradasi kanji yang paling diingini iaitu sebanyak 62.5% hingga 2.9% berat basah pada hari ke-11 penapaian. Aspergillus oryzae mempunyai kesan yang paling positif, iaitu hampir dua kali ganda hasil minyak kunyit kepada 3.17% berat kering selepas hari ke-11 penapaian. Konstituen utama minyak kunyit ialah ?-turmerone, ?-turmerone, dan ar-turmerone.
Terminal Control Area Complexity Measurement Using Simulation Model
Authors: Medianto Rully , Naflah Mutiara Adinda  , Jenie Yazdi Ibrahim , Pasaribu Hisar Manongam , Hari Muhammad  
Published: January 2023

Traffic density in the terminal control area will increase flight safety risks. One effort to reduce the risk is to minimize the controller’s workload when affected by air traffic complexity. This research uses a simulation model to measure air traffic complexity in terminal control areas. The aircraft performance model has been constructed from ADS-B data and represents the aircraft movement in the terminal control area of Soekarno-Hatta International Airport. The simulation model can detect and resolve conflicts to keep separations between aircraft at a specified minimum separation limit. Air traffic complexity measurement uses several indicators, i.e., aircraft density, number of climbing and descending aircraft, aircraft type mixing, conflict control, aircraft speed difference, and controller communication. The weighting factor for each indicator has been obtained from Jakarta Air Traffic Service Center (JATSC) controller perception using an analytic hierarchy process. The simulation results show that the variation of resolution type affects the complexity level significantly. The results of this study can be used as consideration for improving air traffic control procedures and air space structures.
ABSTRAK: Kepadatan trafik di kawasan terminal kawalan bakal menyebabkan peningkatan risiko keselamatan penerbangan. Salah satu cara bagi mengurangkan risiko adalah dengan meminimumkan beban kerja pengawal yang terlibat dengan kesesakan trafik udara. Kajian ini menggunakan model simulasi bagi mengukur kesesakan trafik udara di kawasan terminal kawalan. Model pretasi pesawat telah dibina menggunakan data ADS-B dan ini mewakili pergerakan pesawat di terminal kawalan lapangan terbang antarabangsa Soekarno-Hatta. Model simulasi ini dapat mengesan konflik dan membuat resolusi bagi mengekalkan penjarakan antara pesawat mengikut had penjarakan minimum yang ditetapkan. Beberapa indikator telah digunakan bagi mengukur kerumitan trafik udara, iaitu: ketumpatan pesawat, bilangan pesawat mendaki dan menurun, jenis pesawat, kawalan konflik, perbezaan kelajuan pesawat dan pengawal komunikasi. Faktor pemberat bagi setiap indikator telah diperoleh daripada pengawal persepsi Pusat Servis Trafik Udara Jakarta (JATSC) menggunakan proses analisis hierarki. Keputusan simulasi menunjukkan pelbagai jenis resolusi mempengaruhi tahap kerumitan dengan ketara. Hasil kajian ini boleh digunakan bagi menambah baik prosedur kawalan trafik udara dan struktur ruang udara.
Analisis Sosial-Ekonomi Penghuni Perumahan Setiabudhi Regency, Graha Puspa, Triniti
Authors: Purwaamijaya Iskandar Muda 
Published: January 2023

Pembangunan perumahan di kawasan pinggiran metropolitan semakin meningkat. Hal ini terjadi karena kondisi alam yang masih bersih dan faktor ekologis yang nyaman. Kawasan yang seharusnya digunakan untuk Ruang Terbuka Hijau (RTH), sekarang beralih fungsi menjadi perumahan. Hal ini berkaitan dengan meningkatnya perkembangan sosial-ekonomi. Bukan hanya lahan hijau saja yang telah beralih fungsi, tetapi mobilitas penduduk di sekitar kawasan tersebut meningkat pula. Hal tersebut mengakibatkan berkurangnya Ruang Terbuka Hijau (RTH) Kota Bandung yang akan berdampak pada penurunan kemampuan pemulihan pencemaran udara dan penurunan kualitas lingkungan Kota Bandung. Penelitian bertujuan untuk mengetahui kondisi sosial-ekonomi penghuni perumahan Setiabudhi Regency, Graha Puspa dan Triniti terkait dengan pembangunan perumahan berwawasan lingkungan. Metode penelitian yang digunakan adalah metode deskriptif kuantitatif klasifikasi, yaitu penelitian yang didasarkan atas data deskripsi suatu status, keadaan, sikap, hubungan atau suatu sistem pemikiran yang menjadi objek penelitian. Metode deskriptif penelitian adalah studi kasus, yaitu penelitian yang tidak ditandai oleh penelitian pada satu unit atau kasus saja tetapi lebih mendetail atau mendalam. Hasil penelitian menunjukkan bahwa walaupun lebih dari setengah penghuni perumahan berpendidikan dan berkecukupan secara finansial tetapi tidak memiliki wawasan cukup tentang pembangunan perumahan berwawasan lingkungan. Sebagian besar penghuni perumahan tinggal di perumahan karena alasan fisik lingkungan yang nyaman dan infrastruktur sesuai harapan saja tetapi tidak mengetahui dampak negatifnya terhadap lingkungan.
Pengaruh Izin Mendirikan Bangunan terhadap Penataan Permukiman di Kampung Muara
Authors: Iriani Lia Yulia 
Published: January 2023

Pembangunan perumahan di kawasan pinggiran metropolitan semakin meningkat. Hal ini terjadi karena kondisi alam yang masih bersih dan faktor ekologis yang nyaman. Kawasan yang seharusnya digunakan untuk Ruang Terbuka Hijau (RTH), sekarang beralih fungsi menjadi perumahan. Hal ini berkaitan dengan meningkatnya perkembangan sosial-ekonomi. Bukan hanya lahan hijau saja yang telah beralih fungsi, tetapi mobilitas penduduk di sekitar kawasan tersebut meningkat pula. Hal tersebut mengakibatkan berkurangnya Ruang Terbuka Hijau (RTH) Kota Bandung yang akan berdampak pada penurunan kemampuan pemulihan pencemaran udara dan penurunan kualitas lingkungan Kota Bandung. Penelitian bertujuan untuk mengetahui kondisi sosial-ekonomi penghuni perumahan Setiabudhi Regency, Graha Puspa dan Triniti terkait dengan pembangunan perumahan berwawasan lingkungan. Metode penelitian yang digunakan adalah metode deskriptif kuantitatif klasifikasi, yaitu penelitian yang didasarkan atas data deskripsi suatu status, keadaan, sikap, hubungan atau suatu sistem pemikiran yang menjadi objek penelitian. Metode deskriptif penelitian adalah studi kasus, yaitu penelitian yang tidak ditandai oleh penelitian pada satu unit atau kasus saja tetapi lebih mendetail atau mendalam. Hasil penelitian menunjukkan bahwa walaupun lebih dari setengah penghuni perumahan berpendidikan dan berkecukupan secara finansial tetapi tidak memiliki wawasan cukup tentang pembangunan perumahan berwawasan lingkungan. Sebagian besar penghuni perumahan tinggal di perumahan karena alasan fisik lingkungan yang nyaman dan infrastruktur sesuai harapan saja tetapi tidak mengetahui dampak negatifnya terhadap lingkungan.
Tektonika dan Ragam Akulturasi Arsitektur Rumah Tinggal Di Sendangharjo Tuban
Authors: Fauzy Bachtiar 
Published: January 2023

Studi ini dipandang penting dan memiliki tingkat urgensi untuk dapat dilakukan telaah mendalam, dimana kajian tentang tektonika yang bernuansa akulturasi arsitektur masih jarang dilakukan. Untuk itu penelitian ini bertujuan untuk mengungkap sejauh mana wujud tektonika dan ragam akulturasi arsitektur pada rumah tinggal di Sendangharjo, Tuban. Kasus studi ini merupakan rumah tinggal masyarakat Jawa yang dipengaruhi oleh nilai budaya dan arsitektur etnis Kolonial Belanda yang masuk sejak abad ke-16. Studi tektonika dan ragam akulturasi arsitektur menjadi penting untuk ditelaah lebih lanjut, berdasarkan fenomena dan perkembangan arsitektur pesisir dewasa ini yang berkembang tanpa mempertimbangkan kaidah tektonika dan ragam akulturasi arsitekturnya, yang lambat laun akan menghilangkan ciri dan identitas lokal. Metoda yang digunakan dalam studi ini adalah tektonika, ordering principle, archetype dan relasi fungsi, bentuk dan makna (f, b, m) yang digunakan untuk mengungkap fenomena arsitektur pesisir tersebut. Penelusuran dilakukan melalui deskriptif, analitik dan interpretatif, sehingga penelusuran kasus studi ini dapat dilakukan secara integral, komprehensif dan mendalam. Hasil studi ini menunjukkan bahwa arsitektur rumah tinggal di Sendangharjo Tuban memiliki wujud tektonika dan ragam akulturasi arsitektur yang unsur-unsur bentuk pelingkupnya mengekspresikan wujud ciri dan identitas sebagai arsitektur pesisir.
Transformasi Rumah Adat Balai Padang Sebagai Hunian Tradisional Suku Dayak Bukit Di Kalimantan Selatan
Authors: Damayanti Desak Putu , Budhiari Ni Made Dwi Sulistia , Kuswara Kuswara 
Published: January 2023

Rumah adat Balai Padang merupakan hunian tradisional Suku Dayak Bukit, yang masih dapat ditemui di Pegunungan Meratus, Provinsi Kalimantan Selatan. Namun kini, keberadaan rumah adat Balai makin sulit ditemui, karena masyarakat lebih memilih untuk membangun rumah kayu dibandingkan rumah adat Balai. Fungsi hunian komunal pada rumah adat Balai telah berubah menjadi fungsi hunian pribadi pada rumah kayu. Hal ini menjadi penyebab rumah kayu sering diasumsikan sebagai rumah tradisional suku Dayak Bukit. Fokus pada tulisan ini untuk menganalis proses dan penyebab terjadinya transformasi dari rumah adat Balai Padang yang merupakan fungsi hunian komunal menjadi rumah kayu yang merupakan fungsi hunian pribadi. Aspek yang dianalisis meliputi transformasi fisik yang terjadi dari rumah adat Balai Padang menjadi rumah kayu, dan faktor-faktor penyebabnya. Transformasi fisik yang terjadi diperoleh melalui metode observasi lapangan, sedangkan faktor-faktor penyebab transformasi diperoleh dari hasil wawancara mendalam. Dari observasi lapangan ditemukan bahwa terdapat perubahan mendasar pada konsep ruang dan fungsi bangunan antara rumah Adat Balai Padang dengan rumah kayu. Faktor penyebab transformasi tersebut adalah keinginan penghuni sendiri. Keleluasaan gerak yang terbatas menjadi faktor dominan pemicu masyarakat memilih untuk membangun hunian pribadi, hal ini dapat dilihat dari sempitnya ruangan menjadi alasan terbesar yang dipilih responden untuk pindah ke rumah kayu. Pada proses membangun, ditemukan bahwa 80% rumah kayu yang ada dibangun oleh tukang yang hanya menguasai metode membangun rumah konvensional, sehingga menghasilkan desain rumah kayu yang berbeda dengan rumah adat Balai Padang.