The sintering time also affects the specimens " properties . nano - composite wc - co powder can be hot press sintered to cermet whose hra is 94 . 6 and trs is 1183 mpa under 1350 for 2 hours 最终烧结实验表明纳米复合wc - co粉末1350保温2小时条件下的热压烧结可以获得抗弯强度为1183mpa ,洛氏硬度为94 . 6的硬质合金。