title: 10 Ways to Boost the Impact of Your Research: A case study in campaign marketing

authors: Howie, Jess

subjects: campaign marketing

abstract: There is work to do in raising both the awareness and credibility of libraries as partners in the research lifecycle. However research reveals that often library marketing activities are not strategic, integrated or well-grounded in market research. This case study explores a campaign entitled “10 Ways to Boost the Impact of Your Research”. What began as a resource was developed into an integrated series of promotional activities culminating in a 10-week email marketing campaign. This article briefly explores the literature, outlines the goals of the campaign, the processes involved in its implementation, and describes how it was evaluated.

text: 10 Ways to Boost the Impact of Your Research: A case study in campaign marketing There is work to do in raising both the awareness and credibility of libraries as partners in the research lifecycle. However research reveals that often library marketing activities are not strategic, integrated or well-grounded in market research. This case study explores a campaign entitled “10 Ways to Boost the Impact of Your Research”. What began as a resource was developed into an integrated series of promotional activities culminating in a 10-week email marketing campaign. This article briefly explores the literature, outlines the goals of the campaign, the processes involved in its implementation, and describes how it was evaluated.

year: 2020

title: Study of Titanium based Composite Coatings for Resistance against Molten Aluminium Soldering on H13 Tool Steel

authors: Salman, Asma Siddiq

subjects: mechanical milling

abstract: The service life of industrial components is limited predominantly by chemical corrosion, mechanical failure or mechanical wear. In the aluminium high pressure die casting industry, liquid aluminium is extremely reactive with the constituents of H13 die steel and has a tendency to form intermetallic layers. This chemical interaction results in sticking of molten metal to the die surface which produces defective castings and also damages the die surface. The use of thermal spray coatings provides protection to the surfaces operating in severe environments. An HVOF thermally sprayed coating has the advantage of having excellent bond strength and very low porosity levels (< 1%). This research work is concerned with producing and evaluating the performance of titanium/alumina based composite coatings to improve the service life of tool steel (H13) used for dies in aluminium high pressure die casting and dummy blocks used in Al extrusion.
In this research work, the powder feedstocks for making the composite coatings were produced by high energy mechanical milling of a mixture of Al and TiO₂ powders in two different molar ratios followed by a thermal reaction process. The feedstock powder was then thermally sprayed using a high velocity oxygen fuel (HVOF) technique on H13 steel substrates to produce Ti(Al,O)/Al₂O₃ and TiAl/Al₂O₃ composite coatings. The performance of the coatings was assessed in terms of Al soldering, liquid metal corrosion resistance, thermal shock resistance and wear resistance.
In an immersion test, the coated specimens were dipped into molten Al at a temperature of 700 ± 10 °C for different intervals of time. The performance of the coatings was tested in terms of liquid metal corrosion resistance and propensity to Al soldering. The dissolution behaviour of the coatings was evaluated by measuring weight loss after dipping the samples in to molten aluminium. The immersion test results showed that the coated samples have relatively few locations where aluminium soldering (reactive/chemical) occurred, however, an H13 steel surface showed more tendency for aluminium soldering. It was found that composite coatings changed the molten Al attack on H13 tool steel from a generalized to a localized one. No reaction between molten aluminium and a Ti(Al,O)/Al₂O₃ composite coating was identified. The TiAl/Al2O₃ composite coating was found to be attacked by molten aluminium as a result of a reaction between the coating and molten aluminium. The metallic phase TiAl in the composite coating is believed to be attacked by the molten Al. A Ti(Al,O)/Al₂O₃ composite coating was found to be a better protective coating than the TiAl/Al₂O₃ composite coating due its stability against molten aluminium attack.
The thermal shock behaviour of the composite coatings was investigated by subjecting the coated coupons to a number of cycles, each cycle consisting of a holding time of 30 seconds in molten aluminium at 700 ± 10 °C followed by quenching into water. The surfaces of the coupons were examined for Al soldering and an evaluation of surface spallation. Any cracks found in the coatings were studied to explain their thermal shock behaviour. A Ti(Al,O)/Al₂O₃ composite coating on H13 tool steel produced from a fine feedstock has better thermal shock resistance than the Ti(Al,O)/Al₂O₃ TiAl/Al₂O₃ composite coatings produced from the agglomerated feedstocks.
The study also describes and compares the tribological properties such as friction and sliding wear rate of the composite coatings both at room and high temperature (700.°C) under dry and lubricating conditions. The wear resistance of the coatings was investigated by a tribometer using a spherical ended alumina, flat ended high speed steel and spherical ended hardened steel pins as counter bodies. The experimental results show that the composite coatings look promising for high temperature applications due to their low wear rate at high temperature. However room temperature applications of the composite coatings can be improved under lubricated conditions.
Successful trials of a Ti(Al,O)/Al₂O₃ composite coated dummy block revealed that the coating has potential as an industrial coating.

text: Study of Titanium based Composite Coatings for Resistance against Molten Aluminium Soldering on H13 Tool Steel The service life of industrial components is limited predominantly by chemical corrosion, mechanical failure or mechanical wear. In the aluminium high pressure die casting industry, liquid aluminium is extremely reactive with the constituents of H13 die steel and has a tendency to form intermetallic layers. This chemical interaction results in sticking of molten metal to the die surface which produces defective castings and also damages the die surface. The use of thermal spray coatings provides protection to the surfaces operating in severe environments. An HVOF thermally sprayed coating has the advantage of having excellent bond strength and very low porosity levels (< 1%). This research work is concerned with producing and evaluating the performance of titanium/alumina based composite coatings to improve the service life of tool steel (H13) used for dies in aluminium high pressure die casting and dummy blocks used in Al extrusion.
In this research work, the powder feedstocks for making the composite coatings were produced by high energy mechanical milling of a mixture of Al and TiO₂ powders in two different molar ratios followed by a thermal reaction process. The feedstock powder was then thermally sprayed using a high velocity oxygen fuel (HVOF) technique on H13 steel substrates to produce Ti(Al,O)/Al₂O₃ and TiAl/Al₂O₃ composite coatings. The performance of the coatings was assessed in terms of Al soldering, liquid metal corrosion resistance, thermal shock resistance and wear resistance.
In an immersion test, the coated specimens were dipped into molten Al at a temperature of 700 ± 10 °C for different intervals of time. The performance of the coatings was tested in terms of liquid metal corrosion resistance and propensity to Al soldering. The dissolution behaviour of the coatings was evaluated by measuring weight loss after dipping the samples in to molten aluminium. The immersion test results showed that the coated samples have relatively few locations where aluminium soldering (reactive/chemical) occurred, however, an H13 steel surface showed more tendency for aluminium soldering. It was found that composite coatings changed the molten Al attack on H13 tool steel from a generalized to a localized one. No reaction between molten aluminium and a Ti(Al,O)/Al₂O₃ composite coating was identified. The TiAl/Al2O₃ composite coating was found to be attacked by molten aluminium as a result of a reaction between the coating and molten aluminium. The metallic phase TiAl in the composite coating is believed to be attacked by the molten Al. A Ti(Al,O)/Al₂O₃ composite coating was found to be a better protective coating than the TiAl/Al₂O₃ composite coating due its stability against molten aluminium attack.
The thermal shock behaviour of the composite coatings was investigated by subjecting the coated coupons to a number of cycles, each cycle consisting of a holding time of 30 seconds in molten aluminium at 700 ± 10 °C followed by quenching into water. The surfaces of the coupons were examined for Al soldering and an evaluation of surface spallation. Any cracks found in the coatings were studied to explain their thermal shock behaviour. A Ti(Al,O)/Al₂O₃ composite coating on H13 tool steel produced from a fine feedstock has better thermal shock resistance than the Ti(Al,O)/Al₂O₃ TiAl/Al₂O₃ composite coatings produced from the agglomerated feedstocks.
The study also describes and compares the tribological properties such as friction and sliding wear rate of the composite coatings both at room and high temperature (700.°C) under dry and lubricating conditions. The wear resistance of the coatings was investigated by a tribometer using a spherical ended alumina, flat ended high speed steel and spherical ended hardened steel pins as counter bodies. The experimental results show that the composite coatings look promising for high temperature applications due to their low wear rate at high temperature. However room temperature applications of the composite coatings can be improved under lubricated conditions.
Successful trials of a Ti(Al,O)/Al₂O₃ composite coated dummy block revealed that the coating has potential as an industrial coating.

year: 2011

title: The Aroha block to 1879

authors: Hart, Philip

abstract: Te Aroha was valued by Maori because of its strategic position as well as its healing hot springs, while Pakeha anticipated acquiring a large area (which shrank in size once surveyed) of fertile farming land. Before the Crown could acquire the block, the ownership of a disputed area fought over by the Marutuahu tribes (especially Ngati Maru) and Ngati Haua had to be determined. After the battle of Taumatawiwi of 1830, claimed as a victory by both sides, subsequent smaller battles continued for some years. In place of deciding ownership on this basis, the new land court struggled to make a judgment on the basis of  contradictory claims about ancestry, battles large and small, and occupation.
One part of the larger Aroha block, Ruakaka, was considered separately in 1869, resulting in the court allocating it to Ngati Haua. Also in that year, the first hearing of the Aroha Block was held, at Matamata, with the same outcome. Because of Maratuahu anger and threats of violence, Ngati Haua failed to survey the land as required, and a second hearing was held in Auckland, in 1871, at which Ngati Maru triumphed. Subsequently the block was occupied, but conflicts continued, notably when Ngati Haua gave a Pakeha permission to run cattle at Waiharakeke, further upriver. 
Starting in 1873, James Mackay slowly purchased the interests of individuals claiming ownership of the block, and paid off the Ngati Haua claimants. Then in December 1876, Ngati Tumutumu/Ngati Rahiri claimed the land for themselves, and in the following year the ownership of the Waitoki block, downstream from Te Aroha, was contested. In July 1878, a third hearing of the Aroha case commenced, resulting in Ngati Rahiri being allocated £3,000 and 7,500 acres, the remainder of the block going to Ngati Maru. Subsequently, the process of subdividing the owners’ interests proceeded, very slowly, and a small number of Pakeha settled and commenced farming or storekeeping.

text: The Aroha block to 1879 Te Aroha was valued by Maori because of its strategic position as well as its healing hot springs, while Pakeha anticipated acquiring a large area (which shrank in size once surveyed) of fertile farming land. Before the Crown could acquire the block, the ownership of a disputed area fought over by the Marutuahu tribes (especially Ngati Maru) and Ngati Haua had to be determined. After the battle of Taumatawiwi of 1830, claimed as a victory by both sides, subsequent smaller battles continued for some years. In place of deciding ownership on this basis, the new land court struggled to make a judgment on the basis of  contradictory claims about ancestry, battles large and small, and occupation.
One part of the larger Aroha block, Ruakaka, was considered separately in 1869, resulting in the court allocating it to Ngati Haua. Also in that year, the first hearing of the Aroha Block was held, at Matamata, with the same outcome. Because of Maratuahu anger and threats of violence, Ngati Haua failed to survey the land as required, and a second hearing was held in Auckland, in 1871, at which Ngati Maru triumphed. Subsequently the block was occupied, but conflicts continued, notably when Ngati Haua gave a Pakeha permission to run cattle at Waiharakeke, further upriver. 
Starting in 1873, James Mackay slowly purchased the interests of individuals claiming ownership of the block, and paid off the Ngati Haua claimants. Then in December 1876, Ngati Tumutumu/Ngati Rahiri claimed the land for themselves, and in the following year the ownership of the Waitoki block, downstream from Te Aroha, was contested. In July 1878, a third hearing of the Aroha case commenced, resulting in Ngati Rahiri being allocated £3,000 and 7,500 acres, the remainder of the block going to Ngati Maru. Subsequently, the process of subdividing the owners’ interests proceeded, very slowly, and a small number of Pakeha settled and commenced farming or storekeeping.

year: 2016