On the Sintering of TiN-TiC-Ni Ternary Powder Compacts

Mikio Fukuhara; Hiroyasu Mitani

doi:10.2497/jjspm.27.119

On the Sintering of TiN-TiC-Ni Ternary Powder Compacts

Mikio Fukuhara, Hiroyasu Mitani

New Industry Creation Hatchery Center (NICHe)

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Sintering characteristics of TiN-TiC-Ni mixed powder compacts were studied by heating them in a gas atmosphere of nitrogen, hydrogen and argon, or in vacuum. Shrinkage during sintering was disturbed by an abnormal expansion in a gas atmosphere of argon and hydrogen, or in vacuum, whereas in nitrogen the abnormal expansion was suppressed by the nitrogen pressure. So that the abnormal expansion is thought to be caused by the denitrification which took place during the formation of nitrocarbide, Ti(N, C). Since the solubility in the nickel-solid solution increased with rise of the sintering temperature up to 1340°G, it may be considered that a eutectic between nickel-solid solution and Ti(N, C) occurs at about I340°C.

Original language	English
Pages (from-to)	119-124
Number of pages	6
Journal	journal of the japan society of powder and powder metallurgy
Volume	27
Issue number	4
DOIs	https://doi.org/10.2497/jjspm.27.119
Publication status	Published - 1980 Jan 1

ASJC Scopus subject areas

Mechanical Engineering
Metals and Alloys
Industrial and Manufacturing Engineering
Materials Chemistry

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abstract = "Sintering characteristics of TiN-TiC-Ni mixed powder compacts were studied by heating them in a gas atmosphere of nitrogen, hydrogen and argon, or in vacuum. Shrinkage during sintering was disturbed by an abnormal expansion in a gas atmosphere of argon and hydrogen, or in vacuum, whereas in nitrogen the abnormal expansion was suppressed by the nitrogen pressure. So that the abnormal expansion is thought to be caused by the denitrification which took place during the formation of nitrocarbide, Ti(N, C). Since the solubility in the nickel-solid solution increased with rise of the sintering temperature up to 1340°G, it may be considered that a eutectic between nickel-solid solution and Ti(N, C) occurs at about I340°C.",

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N2 - Sintering characteristics of TiN-TiC-Ni mixed powder compacts were studied by heating them in a gas atmosphere of nitrogen, hydrogen and argon, or in vacuum. Shrinkage during sintering was disturbed by an abnormal expansion in a gas atmosphere of argon and hydrogen, or in vacuum, whereas in nitrogen the abnormal expansion was suppressed by the nitrogen pressure. So that the abnormal expansion is thought to be caused by the denitrification which took place during the formation of nitrocarbide, Ti(N, C). Since the solubility in the nickel-solid solution increased with rise of the sintering temperature up to 1340°G, it may be considered that a eutectic between nickel-solid solution and Ti(N, C) occurs at about I340°C.

AB - Sintering characteristics of TiN-TiC-Ni mixed powder compacts were studied by heating them in a gas atmosphere of nitrogen, hydrogen and argon, or in vacuum. Shrinkage during sintering was disturbed by an abnormal expansion in a gas atmosphere of argon and hydrogen, or in vacuum, whereas in nitrogen the abnormal expansion was suppressed by the nitrogen pressure. So that the abnormal expansion is thought to be caused by the denitrification which took place during the formation of nitrocarbide, Ti(N, C). Since the solubility in the nickel-solid solution increased with rise of the sintering temperature up to 1340°G, it may be considered that a eutectic between nickel-solid solution and Ti(N, C) occurs at about I340°C.

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