Synthesis of TiN-Si3N4 composites from rutile and quartz by carbothermal reduction nitridation | Zendy

Kai Chen | Zendy; Zhaohui Huang | Zendy; Minghao Fang | Zendy; Yangai Liu | Zendy

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Synthesis of TiN-Si3N4 composites from rutile and quartz by carbothermal reduction nitridation

Author(s) -

Kai Chen,

Zhaohui Huang,

Minghao Fang,

Yangai Liu

Publication year - 2012

Publication title -

science of sintering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.309

H-Index - 25

eISSN - 1820-7413

pISSN - 0350-820X

DOI - 10.2298/sos1201057c

Subject(s) - tin , carbothermic reaction , materials science , rutile , microstructure , phase (matter) , quartz , nitrogen , nitriding , composite number , carbon fibers , stoichiometry , nitride , composite material , sintering , chemical engineering , metallurgy , layer (electronics) , chemistry , organic chemistry , engineering , carbide

TiN-Si3N4 composite powders were prepared by carbothermal reduction nitridation using rutile and quartz as raw materials. The influence of temperature and carbon addition on the phase evolution and microstructure of the products were investigated. The equilibrium phase diagram of Si-C-N-O and Ti-C-N-O system at different temperatures under 0.2 MPa nitrogen pressure was drew. The results show that the optimum parameters for synthesizing TiN-Si3N4 by carbothermal reduction nitridation process are carbon addition of stoichiometric content, temperature of 1873 K for 4 h and nitrogen pressure of 0.2 MPa. The produced TiN-Si3N4 in this experiment exist in granular and hexagonal columnar shape, and the average particle size of the synthesized powders is 2 ~ 10 μm

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