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The Basics of Nonferrous Metallurgy

142 Статьи

Minor Metals & Mineral Conservation an Overview: Part Three

by Dr Pradeep K. Maitra, Smriti Nagar Bhilai, India

The social amenities like miniaturized/movable products, their rising sales and rapid obsolescence is creating inordinate demand of MMs.
The MMs like Pd, Rh, Os, Ir, Mo, Ni, Cr, V, Mn etc as metal or their compounds are used in pharmaceutical products related to the preparation of drugs, medicines, dentistry, micro-nutrients etc.

Minor Metals & Mineral Conservation an Overview: Part Two

by Dr Pradeep K. Maitra, Smriti Nagar Bhilai, India

MMs are traded worldwide as mineral concentrates, crude, pure, ultra-pure metals and compounds and represent a family of metals, metalloids and their compounds which are selectively chosen for advanced technological applications and trade.
GeO2 is primarily used in the production of optical products, such as wide-angle lenses and microscope objective lenses, optical fibers, as well as some phosphors and semiconductor materials.

Modification and Refinement of Aluminum-Silicon Alloys

Hypoeutectic aluminum-silicon alloys can be improved by inducing structural modification of the normally occurring eutectic. In general, the greatest benefits are achieved in alloys containing from 5% Si to the eutectic concentration; this range includes most common gravity cast compositions.
The elimination of large, coarse primary silicon crystals that are harmful in the casting and machining of hypereutectic silicon alloy compositions is a function of primary silicon refinement.

Nickel and Nickel Alloys

Nickel in elemental form or alloyed with other metals and materials has made significant contributions to our present-day society and promises to continue to supply materials for an even more demanding future.
Nickel is a versatile element and will alloy with most metals. Complete solid solubility exists between nickel and copper. Wide solubility ranges between iron, chromium, and nickel make possible many alloy combinations...

Phosphor Bronzes

Phosphor bronzes are alloys consisting of tin, phosphorus and copper as main constituents, sometimes with additions of zinc and lead. The structure is made up of three phases: a matrix of copper with tin in solid solution, known as the alpha phase, which is comparatively soft, a tin rich delta phase which is hard and interspersed throughout the matrix, a hard constituent of copper phosphide associated with the delta constituent, which is also hard but brittle.

Physical Properties of Titanium and Its Alloys

This article examines the fundamental physical properties and characteristics of titanium and its alloys, focusing on their unique structural, thermal, and electrical properties. The material's exceptional strength-to-weight ratio, corrosion resistance, and thermal properties are discussed in detail. The article also explores titanium's atomic structure, crystal formation, and magnetic properties, providing a comprehensive overview of this versatile metal's physical characteristics and industrial applications.