Superconducting Properties of MgB2 Bulk Materials Prepared by High Pressure Sintering
High-density bulk materials of a newly discovered 40K intermetallic MgB2 superconductor were prepared by high pressure sintering. Superconducting transition with the onset temperature of 39K was confirmed by both magnetic and resistive measurements ...
H. Fujii +8 more
core +3 more sources
High-entropy AlCoFeCrVNi and AlCoFeCrVTi alloys obtained by mechanical alloying and subsequent sintering [PDF]
High-entropy AlCoFeCrVNi and AlCoFeCrVTi alloys were obtained by mechanical alloying and sintering, and it was shown that after mechanical alloying alloys consist mainly of BCC solid solutionі and insignificant amount of FCC solid solutionі, which are in
Cherniavskyi V. V. +3 more
doaj +1 more source
Effect of high-pressure sintering on snow density evolution: experiments and results
Very few studies have emphasized the effects of high-pressure sintering on snow density evolution, even though snow as a type of engineering material is widely used in construction engineering in cold regions for snow pavement, snow runway and polar ...
Jialin Hong +6 more
doaj +1 more source
Effect of sintering temperature under high pressure in the uperconductivity for MgB2 [PDF]
We report the effect of the sintering temperature on the superconductivity of MgB2 pellets prepared under a high pressure of 3 GPa. The superconducting properties of the non-heated MgB2 in this high pressure were poor.
Jung, C. U. +6 more
core +1 more source
High Pressure. High Pressure Sintering of B6O Powder and Properties of Sintered Compact.
B6O sintered compacts were prepared by high pressure and temperature treatments of in-laboratory synthesized B6O powder. Sinterable B6O powder with grain sizes of 1.2-1.4μm was formed above 1300°C in 4 hours in a pure argon stream by a solid-liquid reaction between amorphous boron and B2O3 powders. Single phase sintered compacts with relative densities
Hideaki ITOH +2 more
openaire +2 more sources
Silver oxalate-based solders: New materials for high thermal conductivity microjoining [PDF]
Micrometric oxalate powders can be decomposed starting from temperatures as low as 90°C, leading to the formation of temporary nanometric grains of metallic silver with a high propensity for sintering.
Baco-Carles, Valérie +9 more
core +3 more sources
Hardness and friction behavior of bulk CoAl2O4 and Co–Al2O3 composite layers formed during Spark Plasma Sintering of CoAl2O4 powders [PDF]
Materials made up of a Co–Al2O3 composite coating over a CoAl2O4 core are prepared during Spark Plasma Sintering of CoAl2O4 powders. The Co particles are precipitated because of a combination of high temperature and low O2 partial pressure.
Chevallier, Geoffroy +5 more
core +3 more sources
Swelling negation during sintering of sterling silver: An experimental and theoretical approach
One of the main challenges of the sintering of sterling silver is the phenomenon of swelling causing de-densification and a considerable reduction of the sintering kinetics.
Charles Manière +5 more
doaj +1 more source
Effect of 1 wt% LiF additive on the densification of nanocrystalline Y2O3 ceramics by spark plasma sintering [PDF]
Densification of nanocrystalline cubic yttria (nc-Y2O3) powder, with 18 nm crystal size and 1 wt% LiF as a sintering additive was investigated. Specimens were fabricated by spark plasma sintering at 100 MPa, within the temperature range of 700–1500 °C ...
Chaim, Rachman +3 more
core +2 more sources
Thermal-Electrical-Mechanical Simulation of High Pressure Spark Plasma Sintering (HP-SPS) Process [PDF]
In the present work, we investigate the stresses distribution using a high pressure die during SPS (Spark Plasma Sintering) experiments. In this context, we used a finite element modeling (FEM) in the case of the sintering of an alumina sample, chosen as
Achenani Youssef +3 more
doaj +1 more source

