Study on Binder Removal and Green Properties of TungstenCarbide-Nickel Hardmetals Fabricated by Powder Injection Moulding
The Chiang Mai Journal of Science is an international English language peer-reviewed journal which is published in open access electronic format 6 times a year in January, March, May, July, September and November by the Faculty of Science, Chiang Mai University. Manuscripts in most areas of science...
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Faculty of Science, Chiang Mai University
2020
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th-cmuir.6653943832-686142020-05-20T04:41:49Z Study on Binder Removal and Green Properties of TungstenCarbide-Nickel Hardmetals Fabricated by Powder Injection Moulding Wantanee Buggakupta Ryosuke Uehara Nutthita Chuankrerkkul Binder Removal Green Properties Powder Injection Moulding The Chiang Mai Journal of Science is an international English language peer-reviewed journal which is published in open access electronic format 6 times a year in January, March, May, July, September and November by the Faculty of Science, Chiang Mai University. Manuscripts in most areas of science are welcomed except in areas such as agriculture, engineering and medical science which are outside the scope of the Journal. Currently, we focus on manuscripts in biology, chemistry, physics, materials science and environmental science. Papers in mathematics statistics and computer science are also included but should be of an applied nature rather than purely theoretical. Manuscripts describing experiments on humans or animals are required to provide proof that all experiments have been carried out according to the ethical regulations of the respective institutional and/or governmental authorities and this should be clearly stated in the manuscript itself. The Editor reserves the right to reject manuscripts that fail to do so. This works aims to investigate the as-injected properties of the tungsten carbide-nickel (WC-Ni) hardmetal powder. Tungsten carbide containing 6wt% nickel blended with a binder mixture of polyethylene glycol (PEG) and polyvinyl butyral (PVB). The powder loadings (the powder to binder mixture ratios) covered 48:52, 50:50 and 52:48 %v/v. The hardmetal powders were initially mixed with PVB in ethanol, followed by PEG, to prepare powder feedstock. Then, the obtained feedstock was injected into a set of steel die at 120-140 oC to get the injected specimens. The green properties, i.e. green strength and density, were examined. Debinding behaviours of PEG by a stagnant water at ambient temperature from 0.5-5 hours were observed. The preliminary study revealed that powder loading governed injection ability as well as injection temperatures. Density of the green specimens depended strongly on powder loading meanwhile the green strength values did not. PEG removal rate of WC-Ni hardmetals were relatively high at the very beginning and became slow with longer debinding times and also affected by powder loadings. 2020-05-20T04:41:49Z 2020-05-20T04:41:49Z 2020 Chiang Mai Journal of Science 47,2 (March 2020), p.343 - 348 2465-3845 https://epg.science.cmu.ac.th/ejournal/dl.php?journal_id=10708 http://cmuir.cmu.ac.th/jspui/handle/6653943832/68614 Eng Faculty of Science, Chiang Mai University |
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Binder Removal Green Properties Powder Injection Moulding Wantanee Buggakupta Ryosuke Uehara Nutthita Chuankrerkkul Study on Binder Removal and Green Properties of TungstenCarbide-Nickel Hardmetals Fabricated by Powder Injection Moulding |
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The Chiang Mai Journal of Science is an international English language peer-reviewed journal which is published in open access electronic format 6 times a year in January, March, May, July, September and November by the Faculty of Science, Chiang Mai University. Manuscripts in most areas of science are welcomed except in areas such as agriculture, engineering and medical science which are outside the scope of the Journal. Currently, we focus on manuscripts in biology, chemistry, physics, materials science and environmental science. Papers in mathematics statistics and computer science are also included but should be of an applied nature rather than purely theoretical. Manuscripts describing experiments on humans or animals are required to provide proof that all experiments have been carried out according to the ethical regulations of the respective institutional and/or governmental authorities and this should be clearly stated in the manuscript itself. The Editor reserves the right to reject manuscripts that fail to do so. |
author |
Wantanee Buggakupta Ryosuke Uehara Nutthita Chuankrerkkul |
author_facet |
Wantanee Buggakupta Ryosuke Uehara Nutthita Chuankrerkkul |
author_sort |
Wantanee Buggakupta |
title |
Study on Binder Removal and Green Properties of TungstenCarbide-Nickel Hardmetals Fabricated by Powder Injection Moulding |
title_short |
Study on Binder Removal and Green Properties of TungstenCarbide-Nickel Hardmetals Fabricated by Powder Injection Moulding |
title_full |
Study on Binder Removal and Green Properties of TungstenCarbide-Nickel Hardmetals Fabricated by Powder Injection Moulding |
title_fullStr |
Study on Binder Removal and Green Properties of TungstenCarbide-Nickel Hardmetals Fabricated by Powder Injection Moulding |
title_full_unstemmed |
Study on Binder Removal and Green Properties of TungstenCarbide-Nickel Hardmetals Fabricated by Powder Injection Moulding |
title_sort |
study on binder removal and green properties of tungstencarbide-nickel hardmetals fabricated by powder injection moulding |
publisher |
Faculty of Science, Chiang Mai University |
publishDate |
2020 |
url |
https://epg.science.cmu.ac.th/ejournal/dl.php?journal_id=10708 http://cmuir.cmu.ac.th/jspui/handle/6653943832/68614 |
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1681752657183637504 |