CALL FOR PAPERS
Asian Symposium on
Materials and Processing 2006
（ASMP2006）
Date:
November 9-10, 2006
Venue:
Sofitel Central Plaza Bangkok, Thailand(http://www.centralhotelsresorts.com/scp_default.asp)
Purpose:Enhancing mutual collaboration for higher research level
and activity in the field of Materials and Processing
Engineering in Asian region.
Organized by:
Japan Society of Mechanical Engineers, Division ofMaterials and Processing, Japan
National Metal and Materials Technology Center, NSTDA,
ThailandSponsored by:
Japan Society of Mechanical Engineers,
Division of Materials and Processing

Scope:The scope of the symposium will cover all the topics related Materials andProcessing, such as:- Engineering materials- Functional materials / Smart materials- Nano materials- Composite materials- Biomaterials- Joining- Powder metallurgy- Casting- Forming / Machining- Mechanical properties / fracture / fatigue- Nondestructive evaluation- Automotive materials and technology- Engineering Surface- Others
Technical Tour: Nov.10 Toyota Moter Thailand Co.
Symposium Banquet: At 18:00 on Nov. 9
Registration fee: 2000Bhats (30000JPY from Japan)
Guide for authors: Submission Language: English
Presentation Language: English

Abstract submission:
A self-contained extended abstract of not more than 1 page, containing
Introduction, Scope, Methodology, Results and Conclusions of the paper
must be supplied before July 31, 2006.
Sample of extended abstract is attached. The abstract can be sent by
e-mail through mutoh@mech.nagaokaut.ac.jp .

Manuscript submission:
The special issue of JSME International Journal, JMMP, will be published
for the papers presented in the Symposium after peer review process.
The authors who wish to publish their papers should submit a fullmanuscript of not more than 8 pages on A4 paper together with a MS word
or PDF file saved in a CD on-site on November 9, 2006. The format ofmanuscript will be informed later.

Co-Chairman:
Dr. Yoshiharu Mutoh, Professor, Nagaoka University of Technology,Japan
Dr. Paritud Bhandubanyong, Associate Professor, MTEC, Thailand
Dr. Naoto Ohtake, Associate Professor, Tokyo Institute Technology,
Japan

Organizing Committee:
Dr. Maekawa, Ibaragi University, Japan
Dr. Ahmad Fauzi Mohd Noor, Associate Professor, USM, Malaysia
Dr. Alberto V. Amorsolo, Associate Professor, University of the Philippines,Philippines
Dr. Mardjono Siswosuwarno, Professor, Bandung Institute of Technology,
Indonesia
Dr. Chaosuan Kanchanomai, Assistant Professor, Thammasat University,Thailand
Dr. Michael Khor Khiam Aik, Professor, Nanyang Technological University,Singapore
Dr. Rajapa Gnanamoorthy, Associate Professor, Indian Institute ofTechnology Madras, India
Dr. Lu Xin, Beijing Research Institute, China
Dr. Young-Taek Im, KAIST, Korea
Dr. Vietor P. W. Shim, National University of Singapore, Singapore
Dr. Tae-Chi Charlie Hsu, Yuan Ze University, Taiwan

REGISTRATION FORM
Organization/Company:
Name:
Title: Prof./Dr./Mr./Mrs./Ms./Others
Position:
Address:
Postal code:

Country:

Telephone No.:Fax No.:E-mail:I want to attend the symposium.
I want to present a paper.
Topic:
I want to submit a paper to JMMP.
Please send Registration form by 30th of June, 2006 to :Dr. Yoshiharu Mutoh
Email: mutoh@mech.nagaokaut.ac.jp
Fax: +81258479770
For further information, please contact Dr. Y. Mutoh.

Sample of Extended Abstract

COMPARISON OF DRY-MIXING AND WET-MIXING FIBRE
REINFORCED HYDROXYAPATITE BIOCERAMICS
Norainiza Saud
School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia,
14300 Nibong Tebal, Penang, Malaysia.
(afauzi@eng.usm.my)
KEY WORDS : bioceramics, composites, alumina fibre, fracture strength
ABSTRACTIn this work, an attempt was made to compare theeffect of dry and wet mixing of Safil-Alumina Fibre
Reinforced Hydroxyapatite (HA). After mixing (wetand dry) of fibre and HA, green compact weresubsequently formed by uniaxial pressing andfollowed by sintering at 1200°C with three different
soaking times i.e. 2, 4 and 6 hours for dry mixing andonly 4 hours for wet mixing. The composites werecharacterized for physical and mechanical properties.
Generally the increase in alumina fiber content resultsin lowering of bending strength, with the maximum
strength 18.5 MPa by dry mixing. This is typicallylower than expected and reasons for which will beexplained.
INTRODUCTION
Hydroxyapatite has a large number ofapplications particularly bone implants and drugdelivery systems. This is due to the excellent
biocompatibility and bioactivity which is the result of
it having identical-like mineral as human bone tissue[2]. However, mechanical reliability and crack growthresistance of the pure HAp ceramic is low, thus
limiting to low loaded implants and coatings [3].
There have been efforts to improve its mechanicalproperties which includes reinforced HA composite.
This is expected to improved wear resistance,
toughness and strength [4]. With this, a study was
made to investigate the effect of Safil alumina fiber as
reinforcement material in HA.
EXPERIMENTAL DETAILSRaw materials used in this study were HAp
powder Ca5(PO4)3(OH), (FLUKA) and alumina fiber(Saffil). 2 wt% binder (PEG 1500) was dissolved indeionised water and subsequently mixed withhydroxyapatite in a plastic bottle and mixed for 1hour. Alumina fiber (5 wt%, 15wt% and 25wt%) was
then added. The mixing process was for 7 hours. The
mixture were then granulated and later formed into bar
shape by pressing with pressure of 80 MPa. The bar
were dried and sintered at 1200°C with three soaking

times of 2 hours, 4 hours and 6 hours. Samples were thenanalyzed for their properties, phase formed andmicrostructure. In wet mixing, a ratio of water to powderof 70:30 was used and the process subsequently similar
to dry mix. Sintering was performed at 1200oC for only 4hours soaking. The results were compared between drymixing and wet mixing.
RESULTS & DISCUSSION
Figure 1 shows the XRD result for both dry and wetmixing.

The results shows that upon sintering, the HA still retains
but interestingly was that there appear to have reations
between the alumina fibre and the matrix, forming Ca
aluminate phase. The latter phase could be visibly
observed under a scanning elelctron microscopy. This
however had resulted in unexpected deterioration inmechanical properties. Dry mixing however had
produced better properties.
CONCLUSION
Drymixinghydroxyapatite.

producedbetter

reinforced

Reference[1] Rodriguez-Lorenzo, L.M., Vallet-R, M., and Ferreira,J.M.F, (2001). Biomaterials, 22 (6), pp 583-588.
[2] Li, J., Liao, H. and Hermansson, L., (1996),
Biomaterials, 17, pp 1787-1790.
[3]
Rodríguez-L.,L.M.
andFerreira,J.M.F.
(2004),Materials Research Bulletin, 39, pp 83-91.
[4] Choi, J.W., Kong, Y.M. and Kim, H.E., (1998), Jr Of
The Amer Cer Soc, 81(7), pp 1743-1748.