Pure tungsten and tungsten alloys with minor alloying additions are known to be brittle at
room temperature and have high ductile-to-brittle transition temperatures (DBTT). Improving …

W–Cu composite materials are widely used in civilian industries and aerospace fields owing
to their integrated properties of high hardness, wear and arc resistance, electrical and …

Ultrafine‐grained (UFG) refractory metals are promising materials for applications in
aerospace, microelectronics, nuclear energy, and many others under extreme environments …

Tungsten is notoriously brittle metal at room temperature. Furthermore, contrary to most
metals, plastic deformation increases ductility and recrystallization decreases ductility of …

As a promising route to prepare ultrafine-grained or nanocrystalline materials, powder
metallurgy has long been used to produce some metal materials with desirable …

The high melting point and thermal stability of MoWTaNbVTi x refractory high entropy alloys
have prompted their potential for harsh temperature structure application. A low-cost …

In this paper, high density nanocrystalline W with uniform dispersion of nanosized oxide
particles was fabricated via a dissolution-precipitation process by well controlled high …

In this study, a low-cost, efficient and industrially feasible pathway was developed to prepare
Mo nanopowder via a two-stage carbothermic reduction of commercial MoO 3 with carbon …

A novel pathway for the preparation of nanoscale Mo powder has been developed. Ultrafine
MoO 2 powder containing different amounts of Mo nanoscale nuclei was synthesized via …

In this work, novel high-voltage electrical contacts of the W-Cu composites reinforced with
tungsten fibers (W f) have been fabricated by hot-press sintering and infiltration processes …