Submicron metal powders produced by ball milling with grinding aids

In ball milling metal powders to submicron size, various salts are more effective as grinding aids than conventional surfactants. Absolute ethyl alcohol is used as the grinding liquid

Cleaning and stabilization of dispersion strengthened materials

Stable dispersion hardened materials produced by controlled cleaning and pressing of ball milled blend of metal and metal oxide powder

Preliminary study of oxide-dispersion-strengthened B-1900 prepared by mechanical alloys

An experimental oxide dispersion strengthened (ODS) alloy based on the B-1900 composition was produced by the mechanical alloying process. Without optimization of the processing for the alloy or the alloy for the processing, recrystallization of the extruded product to large elongated grains was achieved. Materials having grain length-width ratios of 3 and 5.5 were tested in tension and stress-rupture. The ODS B-1900 exhibited tensile strength similar to that of cast B-1900. Its stress-rupture life was lower than that of cast B-1900 at 760 C. At 1095 C the ODS B-1900 with the higher grain length-width ratio (5.5) had stress-rupture life superior to that of cast B-1900. It was concluded that, with optimization, oxide dispersion strengthening of B-1900 and other complex cast nickel-base alloys has potential for improving high temperature properties over those of the cast alloy counterparts

Gas purged dry box glove Patent

Gas purged dry box glove reducing permeation of air or moisture into dry box or isolator by diffusion through glov

Method for producing fiber reinforced metallic composites Patent

Description of method for producing metallic composites reinforced with ceramic and refractory hard metals that are fibered in plac

Method of producing refractory composites containing tantalum carbide, hafnium carbide, and hafnium boride Patent

Production of high strength refractory compounds and microconstituents into refractory metal matri

Grinding as an approach to the production of high-strength, dispersion-strengthened nickel-base alloys

Mechanical process produces dispersion-strengthened metal alloys. Power surface contamination during milling is removed by a cleaning method that involves heating thin shapes or partially-compacted milled powder blends in hydrogen to carefully controlled temperature schedules

Strength and High-Temperature Stability of Dispersion Strengthened Nickel-MgO Alloys

Strength and high-temperature stability of dispersion strengthened nickel-magnesium oxide alloy

Antechamber facilitates loading and unloading of vacuum furnace

Antechamber facilitates the use of a furnace in which materials are heat treated in a high vacuum or a gas atmosphere. It has a high vacuum pumping system, a means for backfilling with a selected gas, an access door, glove ports, and a motor driven platform