Processing and properties of Ti-base intermetallic particles dispersed tetragonal zirconia

Norihito Tanaka; Tohru Sekino; Takafumi Kusunose; Tadachika Nakayama; Koichi Niihara

Processing and properties of Ti-base intermetallic particles dispersed tetragonal zirconia

Norihito Tanaka, Tohru Sekino, Takafumi Kusunose, Tadachika Nakayama, Koichi Niihara

Institute of Multidisciplinary Research for Advanced Materials (IMRAM)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Continuous three step heating process consisted of decomposition, hydrogen reduction and hot-pressing of 3Y-TZP/NiO(or CoO)/TiH₂ powder mixtures has been attempted to obtain 3YTZP/NiTi and 3Y-TZP/CoTi composites. Intermetallic compounds Ti-Ni or Ti-Co binary systems were homogeneously dispersed in Y-TZP matrix. Fracture strength of 3YTZP/30vol%NiTi composite sintered at 1200°C has reached 680MPa that is much higher than the monolithic 3Y-TZP sintered for the same condition. The fracture strength, however, decreased with the increase in sintering temperature above 1300°C. For 5vol% CoTi reinforced 3Y-TZP composite, the fracture strength has increased up to 800MPa. However, when carbon nanotubes (CNT) mixed with this composite system the fracture strength did not improve, because of incomplete reaction and the residual amounts of Co and Ti particles.

Original language	English
Title of host publication	Developments and Applications of Advanced Engineering Ceramics and Composites - Proceedings of the 6th Pacific Rim Conference on Ceramic and Glass Technology, PacRim6
Pages	3-9
Number of pages	7
Publication status	Published - 2006 Jul 24
Event	6th Pacific Rim Conference on Ceramic and Glass Technology, PacRim6 - Maui, HI, United States Duration: 2005 Sep 11 → 2005 Sep 16

Publication series

Name	Ceramic Transactions
Volume	192
ISSN (Print)	1042-1122

Other

Other	6th Pacific Rim Conference on Ceramic and Glass Technology, PacRim6
Country	United States
City	Maui, HI
Period	05/9/11 → 05/9/16

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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Tanaka, N., Sekino, T., Kusunose, T., Nakayama, T., & Niihara, K. (2006). Processing and properties of Ti-base intermetallic particles dispersed tetragonal zirconia. In Developments and Applications of Advanced Engineering Ceramics and Composites - Proceedings of the 6th Pacific Rim Conference on Ceramic and Glass Technology, PacRim6 (pp. 3-9). (Ceramic Transactions; Vol. 192).

Processing and properties of Ti-base intermetallic particles dispersed tetragonal zirconia. / Tanaka, Norihito; Sekino, Tohru; Kusunose, Takafumi; Nakayama, Tadachika; Niihara, Koichi.

Developments and Applications of Advanced Engineering Ceramics and Composites - Proceedings of the 6th Pacific Rim Conference on Ceramic and Glass Technology, PacRim6. 2006. p. 3-9 (Ceramic Transactions; Vol. 192).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Tanaka, N, Sekino, T, Kusunose, T, Nakayama, T & Niihara, K 2006, Processing and properties of Ti-base intermetallic particles dispersed tetragonal zirconia. in Developments and Applications of Advanced Engineering Ceramics and Composites - Proceedings of the 6th Pacific Rim Conference on Ceramic and Glass Technology, PacRim6. Ceramic Transactions, vol. 192, pp. 3-9, 6th Pacific Rim Conference on Ceramic and Glass Technology, PacRim6, Maui, HI, United States, 05/9/11.

Tanaka, Norihito ; Sekino, Tohru ; Kusunose, Takafumi ; Nakayama, Tadachika ; Niihara, Koichi. / Processing and properties of Ti-base intermetallic particles dispersed tetragonal zirconia. Developments and Applications of Advanced Engineering Ceramics and Composites - Proceedings of the 6th Pacific Rim Conference on Ceramic and Glass Technology, PacRim6. 2006. pp. 3-9 (Ceramic Transactions).

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title = "Processing and properties of Ti-base intermetallic particles dispersed tetragonal zirconia",

abstract = "Continuous three step heating process consisted of decomposition, hydrogen reduction and hot-pressing of 3Y-TZP/NiO(or CoO)/TiH2 powder mixtures has been attempted to obtain 3YTZP/NiTi and 3Y-TZP/CoTi composites. Intermetallic compounds Ti-Ni or Ti-Co binary systems were homogeneously dispersed in Y-TZP matrix. Fracture strength of 3YTZP/30vol%NiTi composite sintered at 1200°C has reached 680MPa that is much higher than the monolithic 3Y-TZP sintered for the same condition. The fracture strength, however, decreased with the increase in sintering temperature above 1300°C. For 5vol% CoTi reinforced 3Y-TZP composite, the fracture strength has increased up to 800MPa. However, when carbon nanotubes (CNT) mixed with this composite system the fracture strength did not improve, because of incomplete reaction and the residual amounts of Co and Ti particles.",

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AU - Tanaka, Norihito

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AU - Niihara, Koichi

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N2 - Continuous three step heating process consisted of decomposition, hydrogen reduction and hot-pressing of 3Y-TZP/NiO(or CoO)/TiH2 powder mixtures has been attempted to obtain 3YTZP/NiTi and 3Y-TZP/CoTi composites. Intermetallic compounds Ti-Ni or Ti-Co binary systems were homogeneously dispersed in Y-TZP matrix. Fracture strength of 3YTZP/30vol%NiTi composite sintered at 1200°C has reached 680MPa that is much higher than the monolithic 3Y-TZP sintered for the same condition. The fracture strength, however, decreased with the increase in sintering temperature above 1300°C. For 5vol% CoTi reinforced 3Y-TZP composite, the fracture strength has increased up to 800MPa. However, when carbon nanotubes (CNT) mixed with this composite system the fracture strength did not improve, because of incomplete reaction and the residual amounts of Co and Ti particles.

AB - Continuous three step heating process consisted of decomposition, hydrogen reduction and hot-pressing of 3Y-TZP/NiO(or CoO)/TiH2 powder mixtures has been attempted to obtain 3YTZP/NiTi and 3Y-TZP/CoTi composites. Intermetallic compounds Ti-Ni or Ti-Co binary systems were homogeneously dispersed in Y-TZP matrix. Fracture strength of 3YTZP/30vol%NiTi composite sintered at 1200°C has reached 680MPa that is much higher than the monolithic 3Y-TZP sintered for the same condition. The fracture strength, however, decreased with the increase in sintering temperature above 1300°C. For 5vol% CoTi reinforced 3Y-TZP composite, the fracture strength has increased up to 800MPa. However, when carbon nanotubes (CNT) mixed with this composite system the fracture strength did not improve, because of incomplete reaction and the residual amounts of Co and Ti particles.

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