1.Introduction   Because of its high melting point, low thermal expansion, high thermal conductivity, low neutron yieldunder energetic particle irradiation, low sensitivity to hydrogen, and other favorable properties,tungsten (W) is currently considered a top candidate as a plasma facing materi...

0 Introduction  Since the discovery of the polyenergy effect by Munroe [1] in 1888, polyenergy charges have been widely used in the combat sections of munitions and engineering fields. After several centuries of development, the application of poly energy charge in the combat part is now mainly...

0 Introduction    As a new product manufacturing technology, additive manufacturing has received widespread attention in recent years. Since its emergence in the late 1980s, after more than 20 years of development, the potential of additive manufacturing technology has been continuously ex...

  Niobium alloys have been widely used in the aerospace and nuclear industries due to their high melting point, high hardness, excellent mechanical properties and corrosion resistance [1]. However, due to the low initial oxidation temperature of niobium, the oxidation resistance of niobium and...

0 Preface SiC ceramics are widely used in aerospace, military equipment, and nuclear reactors due to their high hardness, high strength, low coefficient of thermal expansion, and excellent resistance to irradiation and corrosion [1-2]. Despite the excellent comprehensive performance of SiC ceramics,...

1. Introduction   Generally, niobium (Nb) based alloys withstand high stresses at elevated temperatures. These alloys also exhibit good formability and welding properties. Another advantage of Nb is that it possesses the lowest density (8.57 g/cc) amongst the refractory metals (Mo, Ta, W and Rh...

0 Preface  Titanium-zirconium-molybdenum (TZM) alloys, also known as TZM (Ti-Zr-Mo) alloys, are characterized by high melting points, high strengths, low coefficients of thermal expansion, and excellent high-temperature mechanical properties, which have been widely used in the military industry...

1.Introduction   Molybdenum (Mo) is a silver-grey colored metal with a high density of 10.22 g/ , and a high heat resistance due its melting point of 2610 °C,giving it excellent high temperature mechanical properties. This has made it a frequent choice for components used in crystal growing...

Among the refractory metal materials, tantalum metal (Ta) and tantalum alloys have high melting points, very low tough-brittle transition temperatures, good plastic processing and molding ability, excellent corrosion resistance, wear resistance, creep resistance and high-temperature mechanical prope...

1 Introduction   Ta and Ta alloys have excellent properties such as high density, high melting point, corrosion resistance, excellent high temperature strength, good processability and weldability, and low ductile-brittle transition temperature, and are widely used in various industries such as...

Abstract    Additive Manufacturing (AM) provides a unique opportunity to produce objects with complex shapes and enables the processing of materials with high melting points and difficulty in machining. This study focuses on the characterization of pure niobium and copper 6 GHz cavities fa...

The concept of high-entropy alloys was proposed by Prof. Junwei Ye in 2004, which differs from traditional alloys in that high-entropy alloys have at least five main constituent elements and are mixed in equimolar or near equimolar ratios, with the atomic percentage content of each main constituent...