نتایج جستجو برای: 4 super alloys
تعداد نتایج: 1388746 فیلتر نتایج به سال:
A regression model to predict the thermal expansion coefficient (averaged from room temperature to 538’C) of nonmagnetic nickel-base alloys and austenitic steels was obt,ained. The thermal expansion values used in the regression modelling were ta.kcn from published data bases of commercial alloys. An experimental verification of the model was also conducted on 23 nickel-base laborat,ory heats o...
The most notable method of infection from Escherichia coli O157 (E. coli O157) is through contaminated food products, usually ground beef. The objective of this study was to evaluate seven cast copper alloys (61 to 95% Cu) for their ability to reduce the viability of E. coli O157, mixed with or without ground beef juice, and to compare these results to those for stainless steel. E. coli O157 (N...
Equiatomic alloys (e.g. high entropy alloys) have recently attracted considerable interest due to their exceptional properties, which might be closely related to their extreme disorder induced by the chemical complexity. In order to understand the effects of chemical complexity on their fundamental physical properties, a family of (eight) Ni-based, face-center-cubic (FCC), equiatomic alloys, ex...
New dental precious metal alloys for resin bonding without alloy surface modification were developed by adding base metals (In, Zn, or Sn). Before this, binary alloys of Au, Ag, Cu, or Pd containing In, Zn, or Sn were studied for water durability and bonding strength with 4-META resin. The adhesion ability of the binary alloys was improved by adding In equivalent to 15% of Au content, Zn equiva...
Super alloys are basically used in high temperature industrial applications due to their resistance to aggressive environments and longer durability than other conventional alloys. In this research, the dissolution behavior of primary gamma prime precipitates has been analyzed under various solution heat treatments via making changes in the time and temperature of the Standard Heat Treatment (S...
In this study, the bond strength between an indirect composite and a gold alloy was determined for the purpose of evaluating noble metal bonding systems. A single liquid primer designed for conditioning noble metal alloys (Infis Opaque Primer) and tri-n-butylborane-initiated adhesive resins (Super-Bond C & B), with or without the powder component, were assessed. Cast gold alloy disks (Casting G...
The effective synthesis of two-dimensional transition metal dichalcogenides alloy is essential for successful application in electronic and optical devices based on a tunable band gap. Here we show a synthesis process for Mo1-xWxS2 alloy using sulfurization of super-cycle atomic layer deposition Mo1-xWxOy. Various spectroscopic and microscopic results indicate that the synthesized Mo1-xWxS2 all...
Presently, LWR (light-water reactor) fuel cladding (tube) is made from Zr-base alloys (e.g., Zircaloy). However, in steam at temperatures above 1000 K (727 °C), these alloys oxidize rapidly, stripping oxygen from water molecules and producing hydrogen, which may cause explosion. Moreover, Zr-base alloys are prone to GTRF (“grid-to-rod” fretting) failure, in which flowinduced vibration of fuel r...
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