Sintering behavior of molybdenum‑copper and tungsten‑copper alloys by using ultrafine molybdenum and tungsten powders as raw materials

材料科学 冶金 烧结 碳化钨 微观结构
作者
He Zhang,Weicheng Cao,Chun-Yang Bu,Kai He,Kuo-Chih Chou,Guohua Zhang
出处
期刊:International Journal of Refractory Metals & Hard Materials [Elsevier BV]
卷期号:88: 105194-105194 被引量:20
标识
DOI:10.1016/j.ijrmhm.2020.105194
摘要

Abstract In this paper, high quality Mo-(10–40) wt% Cu and W-(10–40) wt% Cu alloys were prepared by powder metallurgy using the ultrafine molybdenum and tungsten powders as raw materials. The molybdenum powder with the size of 100–200 nm and tungsten powder with the size of 50–100 nm were prepared by a two-step reduction-process composed of an insufficient carbothermal reduction reaction and the following deep reduction reaction by hydrogen. From the experimental results, it was concluded that at the sintering temperature of 1200 °C to 1300 °C, relative densities of the Mo-(10–40) wt% Cu and W-(10–40) wt% Cu sintered blocks can reach >98%, and at the same time, excellent physical and mechanical properties were achieved. Meanwhile, the larger the content of copper in the alloy, the lower the temperature required for densification. At 1300 °C, the relative density, microhardness and thermal conductivity of the Mo-10 wt% Cu and W-10 wt% Cu sintered blocks are 98.83% and 99.36%, 167 HV and 283 HV, 138.38 W·m−1·k−1 and 154.15 W·m−1·k−1, respectively. Whereas, at 1200 °C, the relative density, microhardness and thermal conductivity of the Mo-40 wt% Cu and W-40 wt% Cu sintered block are 99.68% and 98.87%, 150 HV and 207 HV, 138.38 W·m−1·k−1 and 154.15 W·m−1·k−1, respectively. The present method was much more convenient relative to the traditional infiltration method.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
大力的怜梦完成签到,获得积分10
1秒前
香蕉觅云应助gdh采纳,获得10
1秒前
1秒前
ding应助科研通管家采纳,获得10
1秒前
共享精神应助科研通管家采纳,获得10
2秒前
FashionBoy应助科研通管家采纳,获得10
2秒前
ED应助科研通管家采纳,获得10
2秒前
CAOHOU应助科研通管家采纳,获得10
2秒前
爆米花应助科研通管家采纳,获得10
2秒前
李健应助科研通管家采纳,获得10
2秒前
小蘑菇应助科研通管家采纳,获得10
2秒前
ED应助科研通管家采纳,获得10
2秒前
酷波er应助科研通管家采纳,获得10
2秒前
2秒前
能干的新筠完成签到,获得积分10
3秒前
丘比特应助科研通管家采纳,获得10
3秒前
英姑应助科研通管家采纳,获得10
3秒前
打打应助科研通管家采纳,获得10
3秒前
3秒前
3秒前
打打应助long采纳,获得10
4秒前
科目三应助serendipity采纳,获得10
6秒前
6秒前
6秒前
砂锅粥发布了新的文献求助10
7秒前
可靠的冰烟完成签到,获得积分10
8秒前
8秒前
Xwu完成签到,获得积分10
8秒前
纷纷故事发布了新的文献求助10
8秒前
9秒前
我是老大应助柳暗花明1302采纳,获得10
9秒前
不吃香菜完成签到,获得积分10
10秒前
τ涛发布了新的文献求助10
10秒前
SYLH应助majiko采纳,获得10
11秒前
Orange应助majiko采纳,获得10
11秒前
杨晓白完成签到,获得积分10
11秒前
11秒前
王达庆完成签到,获得积分10
11秒前
11秒前
樱悼柳雪发布了新的文献求助10
12秒前
高分求助中
The Mother of All Tableaux Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 2400
Ophthalmic Equipment Market by Devices(surgical: vitreorentinal,IOLs,OVDs,contact lens,RGP lens,backflush,diagnostic&monitoring:OCT,actorefractor,keratometer,tonometer,ophthalmoscpe,OVD), End User,Buying Criteria-Global Forecast to2029 2000
Cognitive Neuroscience: The Biology of the Mind 1000
Cognitive Neuroscience: The Biology of the Mind (Sixth Edition) 1000
Optimal Transport: A Comprehensive Introduction to Modeling, Analysis, Simulation, Applications 800
Official Methods of Analysis of AOAC INTERNATIONAL 600
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 588
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3958345
求助须知:如何正确求助?哪些是违规求助? 3504604
关于积分的说明 11118997
捐赠科研通 3235815
什么是DOI,文献DOI怎么找? 1788530
邀请新用户注册赠送积分活动 871225
科研通“疑难数据库(出版商)”最低求助积分说明 802600