top-rated free essay

alloys

By Salma-Tarik Feb 28, 2014 281 Words
A solid solution is a solid-state solution of one or more solutes in a solvent. Such a mixture is considered a solution rather than a compound when the crystal structure of the solvent remains unchanged by addition of the solutes, and when the mixture remains in a single homogeneous phase. This often happens when the two elements (generally metals) involved are close together on the periodic table; conversely, a chemical compound is generally a result of the non-proximity of the two metals involved on the periodic table.[4] The solid solution needs to be distinguished from a mechanical mixture of powdered solids like two salts, sugar and salt, etc. The mechanical mixtures have total or partial miscibility gap in solid state. Examples of solid solutions include crystallized salts from their liquid mixture, metal alloys, moist solids. In the case of metal alloys intermetallic compounds occur frequently. The solute may incorporate into the solvent crystal lattice substitutionally, by replacing a solvent particle in the lattice, or interstitially, by fitting into the space between solvent particles. Both of these types of solid solution affect the properties of the material by distorting the crystal lattice and disrupting the physical and electrical homogeneity of the solvent material.[5] Some mixtures will readily form solid solutions over a range of concentrations, while other mixtures will not form solid solutions at all. The propensity for any two substances to form a solid solution is a complicated matter involving the chemical, crystallographic, and quantum properties of the substances in question. Substitutional solid solutions, in accordance with the Hume-Rothery rules, may form if the solute and solvent have: Similar atomic radii (15% or less difference)

Same crystal structure
Similar electronegativities
Similar valency

Cite This Document

Related Documents

  • What is an alloy?

    ...An alloy is a solid solution or homogeneous mixture of two or more elements where a material with better or different properties is produced. The range of alloys produced depends on the solubility of the constituents and the proportion of them. The number of possible alloy combinations is almost endless since any metal can be alloyed in pairs or...

    Read More
  • Alloys Research Task

    ... why have many different alloys been developed and used? Many different alloys have been developed and used due to the various properties they have when alloyed which increase their amount of uses. Properties such as increased tensile strength, the variation in melting point, malleability and luster are all properties that come as a result from ...

    Read More
  • Alloys

    ...combination of more than one metal and some other element or metal are termed as alloys. An alloy is a mixture of either pure or fairly pure chemical elements, which forms an impure substance (admixture) that retains the characteristics of a metal. An alloy is distinctive from an impure metal, such as wrought iron, in that, with an alloy, the a...

    Read More
  • Verification of Heat Treatments Effect on the Microstructure of Aluminum Alloy (Al-Zn)

    ...VERIFICATION OF HEAT TREATMENTS EFFECT ON THE MICROSTRUCTURE OF ALUMINUM ALLOY (Al-Zn) *1 I. A. LATEEF, and 2 M. O. DUROWOJU 1Department of Mechanical Engineering, Osun State College of Technology, P. M. B. 1011, Esa – Oke, Nigeria. Baale_i@yahoo.com 2Department of Mechanical Engineering, Ladoke Akintola University of Technolog...

    Read More
  • Brass Alloys

    ... Introduction Brasses are copper zinc alloys. It is a substitutional alloy. Brass has higher malleability than copper or zinc. In general, they have good strength and corrosion resistance, although their structure and properties are a function of zinc content. The relatively low melting point of brass (900 to 940°C, depending on composit...

    Read More
  • Aluminum Copper Alloy

    ...Aluminum Copper Alloy MSCI 300 – Thermodynamics of Materials Alexandre de Freitas Silveira Eau Claire December 18th, 2012. Abstract: At this experiment, the composition of an alloy of Aluminum Copper was analyzed via X-Ray Fluorescence. From this, it was possible to construct a phase diagram a make some predictions about the possi...

    Read More
  • Study of Constituents of Alloys

    ...Project on : Study of Constituents of Alloys   INDEX |NAME |PAGE NO. | | ...

    Read More
  • Alloy: Iron and Steel

    ...------------------------------------------------- Alloy Steel is a metal alloy whose major component is iron, with carbon content between 0.02% and 2.14% by mass. An alloy is a metallic solid solution composed of two or more elements. Complete solid solution alloys give single solid phase microstructure, while partial solutions ...

    Read More

Discover the Best Free Essays on StudyMode

Conquer writer's block once and for all.

High Quality Essays

Our library contains thousands of carefully selected free research papers and essays.

Popular Topics

No matter the topic you're researching, chances are we have it covered.