烧结温度对反应热压烧结制备ZrB2-ZrC-W2Zr复合材料组织和力学性能的影响

Shanliang Dong; Sijia Huo; Shuying Zhen; Yumin Zhang; Yujin Wang

doi:10.11896/j.issn.1005-023X.2018.12.010

烧结温度对反应热压烧结制备ZrB₂-ZrC-W₂Zr复合材料组织和力学性能的影响

Translated title of the contribution: Effect of Sintering Temperature on Microstructure and Mechanical Properties of ZrB₂-ZrC-W₂Zr Composites Prepared by Reactive Hot-pressing Method

Shanliang Dong
, Sijia Huo
, Shuying Zhen
, Yumin Zhang
, Yujin Wang^*

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology
Harbin Institute of Technology

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

1 Scopus citations

Abstract

ZrB₂-ZrC-W₂Zr composites were fabricated by reactive hot-pressing method via chemical reaction of B₄C, Zr and W powders. The effect of sintering temperature on the microstructure and mechanical properties of the composites was investigated. As a result, the composites were composed of ZrB₂, ZrC, W₂Zr and a spot of W phase. With the sintering temperature increased from 1 600℃ to 1 900℃, the content of W increased slightly while W₂Zr slightly reduced, the morphology of ZrB₂ led to a change of needle-like to lath-like, the average size of grains increased while the aspect ratio decreased. The flexural strength and fracture toughness firstly increased and then decreased depending on the sintering temperature. The maximum values of 560 MPa and 5.5 MPa•m^1/2 were reached at 1 850℃.

Translated title of the contribution	Effect of Sintering Temperature on Microstructure and Mechanical Properties of ZrB₂-ZrC-W₂Zr Composites Prepared by Reactive Hot-pressing Method
Original language	Chinese (Traditional)
Pages (from-to)	1994-1997
Number of pages	4
Journal	Cailiao Daobao/Materials Review
Volume	32
Issue number	6
DOIs	https://doi.org/10.11896/j.issn.1005-023X.2018.12.010
State	Published - 25 Jun 2018

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@article{8094dda597034fba9a5fbb3c7658e8d6,

title = "烧结温度对反应热压烧结制备ZrB2-ZrC-W2Zr复合材料组织和力学性能的影响",

abstract = "ZrB2-ZrC-W2Zr composites were fabricated by reactive hot-pressing method via chemical reaction of B4C, Zr and W powders. The effect of sintering temperature on the microstructure and mechanical properties of the composites was investigated. As a result, the composites were composed of ZrB2, ZrC, W2Zr and a spot of W phase. With the sintering temperature increased from 1 600℃ to 1 900℃, the content of W increased slightly while W2Zr slightly reduced, the morphology of ZrB2 led to a change of needle-like to lath-like, the average size of grains increased while the aspect ratio decreased. The flexural strength and fracture toughness firstly increased and then decreased depending on the sintering temperature. The maximum values of 560 MPa and 5.5 MPa•m1/2 were reached at 1 850℃.",

keywords = "Mechanical properties, Microstructure, Reactive hot-pressing sintering, Sintering temperature, ZrB-ZrC-WZr composite",

author = "Shanliang Dong and Sijia Huo and Shuying Zhen and Yumin Zhang and Yujin Wang",

year = "2018",

month = jun,

day = "25",

doi = "10.11896/j.issn.1005-023X.2018.12.010",

language = "繁体中文",

volume = "32",

pages = "1994--1997",

journal = "Cailiao Daobao/Materials Review",

issn = "1005-023X",

publisher = "Cailiao Daobaoshe/ Materials Review",

number = "6",

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T1 - 烧结温度对反应热压烧结制备ZrB2-ZrC-W2Zr复合材料组织和力学性能的影响

AU - Dong, Shanliang

AU - Huo, Sijia

AU - Zhen, Shuying

AU - Zhang, Yumin

AU - Wang, Yujin

PY - 2018/6/25

Y1 - 2018/6/25

N2 - ZrB2-ZrC-W2Zr composites were fabricated by reactive hot-pressing method via chemical reaction of B4C, Zr and W powders. The effect of sintering temperature on the microstructure and mechanical properties of the composites was investigated. As a result, the composites were composed of ZrB2, ZrC, W2Zr and a spot of W phase. With the sintering temperature increased from 1 600℃ to 1 900℃, the content of W increased slightly while W2Zr slightly reduced, the morphology of ZrB2 led to a change of needle-like to lath-like, the average size of grains increased while the aspect ratio decreased. The flexural strength and fracture toughness firstly increased and then decreased depending on the sintering temperature. The maximum values of 560 MPa and 5.5 MPa•m1/2 were reached at 1 850℃.

AB - ZrB2-ZrC-W2Zr composites were fabricated by reactive hot-pressing method via chemical reaction of B4C, Zr and W powders. The effect of sintering temperature on the microstructure and mechanical properties of the composites was investigated. As a result, the composites were composed of ZrB2, ZrC, W2Zr and a spot of W phase. With the sintering temperature increased from 1 600℃ to 1 900℃, the content of W increased slightly while W2Zr slightly reduced, the morphology of ZrB2 led to a change of needle-like to lath-like, the average size of grains increased while the aspect ratio decreased. The flexural strength and fracture toughness firstly increased and then decreased depending on the sintering temperature. The maximum values of 560 MPa and 5.5 MPa•m1/2 were reached at 1 850℃.

KW - Mechanical properties

KW - Microstructure

KW - Reactive hot-pressing sintering

KW - Sintering temperature

KW - ZrB-ZrC-WZr composite

UR - https://www.scopus.com/pages/publications/85056728576

U2 - 10.11896/j.issn.1005-023X.2018.12.010

DO - 10.11896/j.issn.1005-023X.2018.12.010

M3 - 文章

AN - SCOPUS:85056728576

SN - 1005-023X

VL - 32

SP - 1994

EP - 1997

JO - Cailiao Daobao/Materials Review

JF - Cailiao Daobao/Materials Review

IS - 6

ER -

烧结温度对反应热压烧结制备ZrB₂-ZrC-W₂Zr复合材料组织和力学性能的影响

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