Hypereutectic High Chromium Cast Iron (HHCCI) is a new type of corrosion-wear-resistant material developed from ordinary high chromium cast iron by increasing the and carbon content often used in abrasive environments where wear corrosion interact. The resistance HHCCI related to number, size, shape distribution carbides microstructure matrix. This paper reviews research progress improving vari...

Cryogenic treatment is a sustainable manufacturing process preferred to improve the properties of material. In present study, effect cryo treated tungsten carbide cobalt bonded insert (WC-Co) measured in terms tool life and surface finish on dry turning high strength AISI4340 steel at different machine parametric conditions. The observations Untreated (UT) Deep Cryo Treated (DCT) inserts were c...

Significant advances in the development of high electron-mobility field-effect transistors (HEMTs) have resulted in cryogenic, low-noise amplifiers (LNAs) whose noise temperatures are within an order of magnitude of the quantum noise limit (hf/k). Further advances in HEMT technology at cryogenic temperatures may eventually lead to the replacement of maser and superconducting–insulator– supercon...

We report the reduction of the thermal lensing in cryogenic sapphire mirrors, which is planed to be used in the Large scale Cryogenic Gravitational wave Telescope (LCGT) project. We measured three key parameters of sapphire substrate for thermal lensing at cryogenic temperature. They are optical absorption coefficient, thermal conductivity and temperature coefficient of refractive index at cryo...

Cryogenic treatments and cryoprotective agents (CPAs) determine the survival rate of organisms that undergo cryopreservation, but their mechanisms of operation have not yet been characterised adequately. In particular, the way in which membrane lipids respond to cryogenic treatments and CPAs is unknown. We developed comparative profiles of the changes in membrane lipids among cryogenic treatmen...

Abstract The conductivity and strength of Cu-Fe composites are contradictory. Cryogenic treatment is a promising process to improve the materials at same time. impact cryogenic on thermo-mechanically processed Cu-11Fe composite was studied using digital micro-ohmmeter, tensile testing machine optical microscopy. average size iron grain in cryogenically treating alloy decreased distribution more...