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Abstract:
采用放电等离子烧结技术将WO3、Co和炭黑的混合粉原位合成为致密WC-Co块体,研究了合成工艺、配碳量和晶粒长大抑制剂VC、Cr3C2对块体的物相、致密度和显微组织的影响,测定了块体的硬度和断裂韧性.结果表明:配碳量低时,块体中有缺碳杂相Co3W9C4或Co3W3C,密度较高;增加配碳量,块体的物相为纯.WC和Co;配碳量过大,块体中出现游离碳,密度降低;添加抑制剂使晶粒尺寸保持在0.5 μm以下.
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材料科学与工艺
ISSN: 1005-0299
Year: 2005
Issue: 6
Volume: 13
Page: 564-566
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 2
Chinese Cited Count:
30 Days PV: 12
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