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 …

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

Metal oxide and carbide strengthening molybdenum (Mo) alloys have been designed as
promising advanced materials in refractory metals to solve some of the core engineering …

In this work, WY 2 O 3 alloys are prepared by freeze-drying and subsequent low temperature
sintering. The average size of reduced WY 2 O 3 composite powders prepared by freeze …

Powder metallurgy generally is a preferred method to consolidate and prepare some
refractory metals considering their high melting temperatures. However, sintering such …

In this work a novel process methodology to concurrently improve the compressive strength
(2078 MPa at a strain rate of 5× 10− 4 s− 1) and strain-to-failure (over 40%) of bulk tungsten …

The challenge of producing dense ultrafine-grained (UFG) tungsten is hereby addressed by
a simple pressureless two-step sintering method. It provides a uniform microstructure with …

High purity W and W–0.9 La2O3 (wt.%) nanopowders were produced by a wet chemical
route. The precursor was prepared by the reaction of ammonium paratungstate (APT) with …

Abstract Oxide-dispersion-strengthened (ODS) tungsten based alloys with high performance
were synthesized by optimized freeze-drying with PVP and PEG polymer dispersant …

Yttria dispersion-strengthened tungsten with both enhanced strength and ductility was
synthesized through sol–gel method followed by sintering and high-temperature swaging …