A revision of the New World species of powder-post beetles belonging to the family Lyctidae /

Selected references: p. 46-55.

North African powder keg.

Mode of access: Internet.

Basic metallurgy.

v. 1. Principles. Rev. reprint, 1962, repr. 1968.--v. 2 [Metallurgical equipment and laboratory techniques] Ed. by G. William Zuspan.

Applied metallurgy for engineers.

Includes bibliographies and index.

Welding metallurgy; iron and steel,

Includes "Suggested reading."

The Mining magazine and journal of geology, mineralogy, metallurgy, chemistry and the arts

Mode of access: Internet.

Alumni blue book, School of Mines and Metallurgy, Institute of Technology, University of Minnesota.

Mode of access: Internet.

Resource management plan/environmental impact statement for the Powder River Resource Area : Miles City district, Montana : draft /

Eight maps on folded sheets in 2 pockets.

The metallurgy of gold.

Mode of access: Internet.

The powder of sympathy,

Mode of access: Internet.

Soviet Ferrous Metallurgy

Mode of access: Internet.

On the sintering of uncompacted, pre-alloyed Al powder alloys

The effect of the addition of elemental Mg, Sri and Pb on the sintering of impressed prealloyed 2124 and 6061 powder has been investigated. Despite being sintered at a temperature that resulted in similar to20 vol.% liquid phase, high density was possible only upon the addition of similar to1% elemental Mg as well as trace amounts of Sri or Pb. Additions of Mg facilitated oxide disruption, while Sri and Pb segregated to the liquid phase, where they reduced the liquid's surface tension, thus improving sintering. (C) 2002 Elsevier Science B.V. All rights reserved.

On the role of magnesium and nitrogen in the infiltration of aluminium by aluminium for rapid prototyping applications

Selective laser sintering has been used to fabricate an aluminium alloy powder preform which is subsequently debound and infiltrated with a second aluminium alloy. This represents a new rapid manufacturing system for aluminium that can be used to fabricate large, intricate parts. The base powder is an alloy such as AA6061. The infiltrant is a binary or higher-order eutectic based on either Al-Cu or At-Si. To ensure that infiltration occurs without loss of dimensional precision, it is important that a rigid skeleton forms prior to infiltration. This can be achieved by the partial transformation of the aluminium to aluminium nitride. In order for this to occur throughout the component, magnesium powder must be added to the alumina support powder which surrounds the part in the furnace. The magnesium scavenges the oxygen and thereby creates a microclimate in which aluminium nitride can form. The replacement of the ionocovalent Al2O3 with the covalent AlN on the surface of the aluminium powders also facilitates wetting and thus spontaneous and complete infiltration. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.