interfacial angle

interfacial angle

[′in·tər‚fā·shəl ¦aŋ·gəl]
(crystallography)
The angle between two crystal faces.
References in periodicals archive ?
The measured interfacial angle gave the slope and from this slope a ratio in small integers could be estimated.
The drawings and the accompanying interfacial angles of the crystals provided a method of species identification.
Hauy used the contact goniometer--invented by his friend Arnould Carangeot (1742-1806) and at that time the only instrument available for this purpose--to measure interfacial angles.
The interfacial angles, given in the text volumes, could then provide the identification.
Configuration parameters that are of interest in the stability aspect of cover design include the slope and length, density and thickness of cover soil, presence of seepage forces, static and dynamic interfacial angle etc.
Actually, it can be shown algebraically that any form which satisfies the zonal equation will also satisfy the interfacial angle equals 60[degrees] requirement, thus making step (d) superfluous.
The interfacial angles in the prism zone would all be 30[degrees].
The calculated interfacial angles between adjacent pairs of prism faces alternate between 38[degrees]13' and 2l[degrees]47', so that the sum of the two is exactly 60[degrees].
These alterations are quite legitimate, provided that the interfacial angles remain as they were originally.
Covered in 45 pages, he deals with crystallographic terminology, constants such as interfacial angles, and a wonderful approach to "analyzing crystals" that utilizes a seven-step decision tree to arrive at proper identification of the crystal system.
Further, he showed that the striations on the projecting portions of the crystals do not meet at right angles at edges and do not have interfacial angles of the pyritohedron {210}, as do those of normal, striated pyrite.
The critical improvement developed as a result of the discovery of the constancy of interfacial angles by his assistant, Arnould Carangeot, while he was engaged with Swebach Desfontaines in manufacturing terra cotta crystal models for Rome de l'Isle.