The Activated Sintering of Tungsten with Group VIII Elements
The Activated Sintering of Tungsten with Group VIII Elements
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DOI：
10.1149/1.2425876
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发表时间：
1963-07
影响因子：
3.9
通讯作者：
H. W. Hayden;J. H. Brophy
中科院分区：
文献类型：
--
作者：
H. W. Hayden;J. H. Brophy
少量添加第VIII族过渡元素可以使钨粉压坯在远低于商业纯钨粉烧结温度下致密化。这一过程的机制已被检查使用当前的一般烧结理论的模型概念。所添加的固体元素加速了沿其与钨颗粒的界面的质量传输沿着。该过程与在液相或挥发性组分存在下的烧结一起，包括三种类型的载体相烧结，其中几种可能的纯组分固态烧结机制之一被选择性地加速。
Small additions of Group VIII transition elements permit the densification of tungsten powder compacts at temperatures well below those employed for sintering commercial purity tungsten powder. The mechanism of this process has been examined using the model concepts of current general sintering theories. The added solid element accelerates mass transport along its interface with a tungsten particle. This process, together with sintering in the presence of a liquid phase or a volatile component, comprises the three types of carrier phase sintering in which one of several possible pure component solid‐state sintering mechanisms is selectively accelerated.