利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN103517777A 烧结碳化物材料 有权

烧结碳化物材料
摘要：
烧结碳化物材料，含有呈微粒形式的碳化钨（WC）材料和粘结相，碳化钨材料具有相当于至少0.5微米和至多10微米的圆直径的平均晶粒尺寸D，粘结相含有至少5重量%和至多12重量%的钴（Co），W以粘合剂材料的至少10重量%的含量存在于粘合剂中，所述WC材料的含量为至少75重量%和至多95重量%；并且，纳米微粒分散在所述粘合剂材料中，所述纳米微粒含有公式CoxWyCz的材料，其中X为范围从1至7的值，Y为范围从1至10的值，且Z为范围从0至4的值；所述纳米微粒的平均微粒尺寸为至多10nm，至少10%的纳米微粒的尺寸为至多5nm；烧结碳化物材料的磁矫顽力以kA/m为单位为至少-2.1×D+14。
摘要（英）：

Cemented carbide material comprising tungsten carbide (WC) material in particulate form having a mean grain size D in terms of equivalent circle diameter of at least 0.5 micron and at most 10 microns, and a binder phase comprising cobalt (Co) of at least 5 weight per cent and at most 12 weight per cent, W being present in the binder at a content of at least 10 weight per cent of the binder material; the content of the WC material being at least 75 weight per cent and at most 95 weight per cent; and nanoparticles dispersed in the binder material, the nanoparticles comprising material according to the formula CoxWyCz, where X is a value in the range from 1 to 7, Y is a value in the range from 1 to 10 and Z is a value in the range from 0 to 4; the nanoparticles having a mean particle size at most 10 nm, at least 10 per cent of the nanoparticles having size of at most 5 nm; the cemented carbide material having a magnetic coercive force in the units kA/m of at least -2.1 * D + 14.

公开/授权文献
0/0