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首页> 外文会议>Powder Metallurgy World Congress amp; Exhibition(PM 2006); 20060924-28; Busan(KR) >Synthesis of WC-10wt.Co Nanocrystalline Powders with Grain Growth Inhibitor by MTP
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Synthesis of WC-10wt.Co Nanocrystalline Powders with Grain Growth Inhibitor by MTP

机译：MTP法合成具有晶粒生长抑制剂的WC-10wt。％Co纳米晶粉

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摘要

To improve the fracture strength and wear resistance of WC-Co cemented carbide, various technologies have been developed related producing the nano crystalline. There have been extensive studied conducted to retard grain growth during liquid phase sintering. However, when this inhibitor is added by simple mixing, a micro-pores forms during sintering In this study, WC-Co nanocrystalline powders with grain growth inhibitor in the site were prepared by MTP (Mechano-Thermic carburizing Process) to minimize this formation of micro pores and to retard grain growth effectively during sintering. In addition, then the phase and grain size of WC-Co nanocrystalline powders were evaluated according to the condition of MTP.
机译：为了提高WC-Co硬质合金的断裂强度和耐磨性，已经开发了与生产纳米晶体相关的各种技术。已经进行了广泛的研究以阻止液相烧结过程中的晶粒生长。然而，当通过简单混合添加这种抑制剂时，在烧结过程中会形成微孔。在这项研究中，通过MTP（机械热渗碳工艺）制备了具有晶粒生长抑制剂的WC-Co纳米晶体粉末，以最大程度地减少这种形成。微孔并在烧结过程中有效地阻止晶粒长大。另外，根据MTP的条件评价了WC-Co纳米晶粉的相和晶粒尺寸。

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