放电等离子烧结热压时间对SiC<sub>f</sub>/TC17板材致密化的影响

解川; 鲁世强; 黄浩; 王敏涓; 李虎; 张书铭; 黄旭

doi:10.15980/j.tzzz.2019.09.020

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放电等离子烧结热压时间对SiC_f/TC17板材致密化的影响
Effects of Hot Pressing Time of Spark Plasma Sintering on Densification Rate of SiC_f/TC17 Sheet
2019年39卷第9期页码：997-1002
纸质出版日期： 2019 ，
DOI： 10.15980/j.tzzz.2019.09.020

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[1]解川,鲁世强,黄浩,王敏涓,李虎,张书铭,黄旭.放电等离子烧结热压时间对SiC_f/TC17板材致密化的影响[J].特种铸造及有色合金,2019,39(09):997-1002.

Xie Chuan, Lu Shiqiang, Huang Hao, et al. Effects of Hot Pressing Time of Spark Plasma Sintering on Densification Rate of SiC_f/TC17 Sheet[J]. Special Casting & Nonferrous Alloys, 2019,39(9):997-1002.
[1]解川,鲁世强,黄浩,王敏涓,李虎,张书铭,黄旭.放电等离子烧结热压时间对SiC_f/TC17板材致密化的影响[J].特种铸造及有色合金,2019,39(09):997-1002. DOI： 10.15980/j.tzzz.2019.09.020.

Xie Chuan, Lu Shiqiang, Huang Hao, et al. Effects of Hot Pressing Time of Spark Plasma Sintering on Densification Rate of SiC_f/TC17 Sheet[J]. Special Casting & Nonferrous Alloys, 2019,39(9):997-1002. DOI： 10.15980/j.tzzz.2019.09.020.

摘要

采用放电等离子烧结（SPS）对连续SiC

增强TC17复合材料板材预制体进行热压制备

研究了不同热压时间对SiC

/TC17复合材料致密化程度的影响。结果表明

SiC

/TC17复合材料的相对密度随热压时间延长而提高

在50 MPa、900℃下保温15min基本实现了致密化

相对密度达到99.4%。此外

基于对放电等离子烧结参数曲线和具有代表性的微观组织特征的分析

可将SiC

/TC17复合材料板材预制体的致密化过程分为先驱丝表面净化与活化、快速致密化和蠕变致密化3个阶段

并对致密化过程中先驱丝钛合金涂层的塑性变形及致密化机理进行了初步分析。

Abstract

Spark Plasma Sintering（SPS）technology was used to prepare the continuous SiC fiber reinforced TC17 titanium matrix composites（SiC

/TC17）sheet at different hot pressing time.The effects of hot pressing time on the densification rate of SiC

/TC17 were analyzed.The results show that the relative density of SiC

/TC17 is improved with the increase of the hot pressing time

and the densification rate can be basically realized at 900℃and 50 MPa for 15 min

with the relative density of 99.41%.In addition

by combining the SPS parameter curves with representative microstructure characteristics

the densification process of SiC

/TC17 can be divided into three stages:the purification and activation of precursor fiber surface

the rapid densification and the creep densification.On this basis

the deformation and densification mechanism of titanium alloy coating of SiC

/TC17 precursor fibers in SPS process were described.

关键词

钛基复合材料放电等离子烧结致密化机理

Keywords

Titanium Matrix CompositesSpark Plasma SinteringDensification Mechanism

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放电等离子烧结热压时间对SiCf/TC17板材致密化的影响

Effects of Hot Pressing Time of Spark Plasma Sintering on Densification Rate of SiCf/TC17 Sheet

DOI： 10.15980/j.tzzz.2019.09.020

摘要

Abstract

关键词

Keywords

references

放电等离子烧结热压时间对SiC_f/TC17板材致密化的影响

Effects of Hot Pressing Time of Spark Plasma Sintering on Densification Rate of SiC_f/TC17 Sheet