A survey on spark plasma sinterability of CNT-added TiC ceramics

被引：15

作者：

Van-Huy Nguyen ^{[1
,2
]}

Namini, Abbas Sabahi ^{[3
,4
]}

Delbari, Seyed Ali ^{[5
]}

Quyet Van Le ^{[6
]}

Asl, Mehdi Shahedi ^{[7
]}

Shokouhimehr, Mohammadreza ^{[5
]}

Mohammadi, Mohsen ^{[7
]}

机构：

[1] Ton Duc Thang Univ, Dept Management Sci & Technol Dev, Ho Chi Minh City, Vietnam

[2] Ton Duc Thang Univ, Fac Appl Sci, Ho Chi Minh City, Vietnam

[3] Univ Mohaghegh Ardabili, Fac Adv Technol, Dept Engn Sci, Namin, Iran

[4] Sabalan Univ Adv Technol SUAT, Fac Adv Technol, Dept Engn Sci, Namin, Iran

[5] Seoul Natl Univ, Dept Mat Sci & Engn, Res Inst Adv Mat, Seoul 08826, South Korea

[6] Duy Tan Univ, Inst Res & Dev, Da Nang 550000, Vietnam

[7] Univ New Brunswick, Marine Addit Mfg Ctr Excellence MAMCE, Fredericton, NB E3B 5A1, Canada

来源：

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2021年 / 96卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

TiC; CNTs; Graphite; Precipitation; SPS; UHTCs; MECHANICAL-PROPERTIES; DENSIFICATION; MICROSTRUCTURE; TEMPERATURE; GRAPHENE; PERFORMANCE; RESISTANCE; GRAPHITE;

D O I：

10.1016/j.ijrmhm.2021.105471

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The objective of this study was to assess the impacts of carbon nanotubes (CNTs) incorporation on the mechanical characteristics, thermal conductivity, microstructure, and sintering behavior of titanium carbide (TiC) matrix ceramics. To this aim, two samples of TiC-CNTs and monolithic TiC were produced using the SPS process at 1900 ?C. The results indicated the obvious deposition of carbon from the crystalline lattice of TiC in the undoped sample; however, the addition of CNTs hindered this phenomenon remarkably. Moreover, in the carbon-doped sample, the areas where CNTs were agglomerated provided suitable places for limited precipitation of carbon from TiC. As a result, no graphite flake was observed in the microstructure of the CNT-doped specimen. Additionally, the amount of residual amorphous TiO2 in the final microstructure of carbon-doped ceramic was significantly declined by introducing CNTs to TiC. The thermal conductivity of 13.9 W/mK, the flexural strength of 413 MPa, and the hardness of 3016 HV0.1 kg were obtained for the TiC-CNTs ceramic, which all of them were lower than those obtained for the monolithic TiC.

引用

页数：9

共 52 条

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