from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of numerous minute rudimentary, crystalline bodies of unknown composition found in glassy igneous rocks.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A small region of a solid that consists of a single crystal; a grain
from the GNU version of the Collaborative International Dictionary of English
- n. A minute mineral form like those common in glassy volcanic rocks and some slags, not having a definite crystalline outline and not referable to any mineral species, but marking the first step in the crystallization process. According to their form crystallites are called trichites, belonites, globulites, etc.
from The Century Dictionary and Cyclopedia
- n. Whinstone cooled slowly after fusion.
- n. The term suggested by Vogelsang as a general name for aggregations of globulites in various forms. See cumulite, margarite, and longulite.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any of numerous minute rudimentary crystalline bodies of unknown composition found in glassy igneous rock
A crystallite is a single grain in a poly crystaline substance.
This can be alleviated by performing a short activation grinding, which dissociates the mineral bonds and consequently increases the specific surface area, and also fractures the crystallite structure which significantly increases the weatherability and therefore the solubility of these minerals.
A grain or crystallite is a tiny cluster of atoms arranged in an orderly three-dimensional pattern.
The coating has a high resistance to oxidation and prevents any plastic deformation of the nano-crystallite, eliminating any boundary slip in the matrix that forms the coating.
The company was able to work at nanostructure levels (1nm = 1 billionth of a metre), which enabled a reduction in the crystallite size of particles.
Almost any crystallite preparation that produces small isolated crystals can be substituted for the polypeptide preparation.
I also read that by mechanical milling crystallite size is reduced.
You have to know what a crystallite is to understand this task.
I think that as the size of these grains becomes smaller they may require more or less energy to "transform" from one crystallographic phase to another, based on the crystallite size.
The Hall-Petch relation predicts that as the grain size or crystallite decreases the yield strength increases