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interatomic distance

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000131
EISBN: 978-1-62708-313-3
...Abstract Abstract This appendix provides crystal structure and property data for alloying elements used in superalloys. alloying elements atomic radius atomic weight density interatomic distance lattice constant melting point Properties of common superalloy alloying elements...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540357
EISBN: 978-1-62708-309-6
..., the ABCD plane is designated as the (010) plane because it is parallel to the x – and z -axes (no intercept) and intersects the y -axis at a distance a , which is taken as one interatomic spacing. [2] Fig. A1.8 Example of interior planes in a primitive cube structure In similar...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420041
EISBN: 978-1-62708-310-2
... are equal and do not change during mixing so that the interatomic distances and bond energies are independent of composition. The structure of a binary solid solution is shown schematically in Fig. 3.13 . Three types of interatomic bonds are present: A – A bonds, each with an energy ε AA...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480031
EISBN: 978-1-62708-318-8
..., and the material expands as interatomic distances increase. When materials are heated to their melting points, solid-state bond strengths are greatly reduced, atomic arrangements become almost completely random, and a liquid phase appears. With additional heating, bonds are weakened further and a greater...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560005
EISBN: 978-1-62708-291-4
... a structural transformation occurring by regular or coordinated movements in which atoms generally are displaced a distance that is less than the interatomic distance. Christian ( Ref 40 ) used the term military , and Guy ( Ref 41 ) the term displacive , for this process, in which (1...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700135
EISBN: 978-1-62708-279-2
... of the interatomic spacing, depending on the atomic plane distance from the twin plane. Slip, on the other hand, occurs in whole number increments of interatomic spacing. Another difference between slip and twinning is that in slip the crystallographic orientation above and below the slip plane does not change...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240631
EISBN: 978-1-62708-251-8
... is a simple expression relating the x-ray wavelength and interatomic spacing to the angle of the diffracted beam. If Bragg’s law is not satisfied, then the reflected rays will be out of phase and cancel each other. Although for a given metallic substance, only a few values for n and d hkl will satisfy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230117
EISBN: 978-1-62708-298-3
..., CaB 6 , possesses a sodium chloride structure in which sodium ions are replaced by calcium. The chloride ions are replaced by regular octahedra of boron atoms. Every octahedron is linked to six neighboring octahedra at a distance of 1.72 Å, which is also the interatomic distance within each octahedron...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240017
EISBN: 978-1-62708-251-8
... Material behavior under stress The nondirectional metallic bond allows metals to deform by shear, as illustrated in Fig. 2.11 . For the atoms in the upper plane to slide over those in the lower plane, strong interatomic forces must be overcome by the applied shear stress. When the atoms...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220403
EISBN: 978-1-62708-259-4
... is called the elastic modulus, E . Thus σ E = E ε E . The elastic, reversible deformation happens because of the increase in the interatomic distances in the material. During this stage of elastic deformation, the material volume is not conserved. Beyond a certain stress level, permanent deformation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420363
EISBN: 978-1-62708-310-2
..., there will be a repulsion between the negatively charged electrons of each atom. The repulsion force increases rapidly as the distance of separation decreases. However, when the separation is large, there is attraction between the positive nucleus charge and the negative charge of the electrons. At some equilibrium...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000059
EISBN: 978-1-62708-313-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420303
EISBN: 978-1-62708-310-2
... a small distance, on the order of approximately an interatomic spacing. This shear movement of atoms and phase growth occurs rapidly. It is not an instantaneous transformation, but it is quicker and distinct from the slower diffusion-controlled process in isothermal transformations. The M s...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060049
EISBN: 978-1-62708-261-7
... Here, σ is the stress (force per unit area), and ε is the strain deformation per unit length (Δ l / l ). The values of the elastic moduli are primarily determined by two fundamental contributing factors: the crystalline strucure of the material in question and the interatomic bond strengths...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240153
EISBN: 978-1-62708-251-8
... distance, on the order of approximately an interatomic spacing. This shear movement of atoms and phase growth occurs rapidly. It is not an instantaneous transformation, but it is quicker and distinct from the slower, diffusion-controlled process in isothermal transformations. The M s temperature can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060013
EISBN: 978-1-62708-261-7
... as the separation distance between atoms decreases. However, when the separation distance is large enough, there is an attraction between the positive nuclear charge and the negative charge of the electrons. At some equilibrium distance, the attractive and repulsive forces balance each other out and the net force...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000025
EISBN: 978-1-62708-313-3
..., and this structure is more likely to form intermetallics with extremely low interatomic distances, for example, the Laves and σ phases ( Ref 7 ). This increased propensity for tcp formation lowers the maximum amount of solid-solution element that can be tolerated in the iron-containing γ matrix and therefore...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780028
EISBN: 978-1-62708-281-5
... of purely aliphatic (linear chains, without rings) side chains. It occurs when the reduction of stiffening through increased intermolecular distance is offset by side-chain crystallization. After the aliphatic side chain reaches eight to ten carbon units in length, side-chain crystallization can occur...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230267
EISBN: 978-1-62708-298-3
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310001
EISBN: 978-1-62708-286-0
... thermodynamic properties are based on interatomic attractions. In metals, the metal atoms give up valence electrons to the entire mass. These electrons are of varying energy states and highly mobile. They are responsible for the ability of metals to conduct heat and electricity well. The attraction...