structure (碱金属卤化物或者称为岩盐结构), each point of the FCC lattice is assigned a basis of one unit of NaCl: Na (groupIatom) at(0,0,0)and Cl (groupVIIatom) ata(1/2,1/2,1/2)(or vice versa), as shown in the following figure. The coordination number of this structure is 6...
We selected the four types: NaCl, CsCl, cubic ZnS and hexagonal ZnS 鈥 which have a large number of representatives. Most of the data for these structure types have been drawn from Wyckoff [1] and Landolt-Brnstein [2]. On account of the different scattering factors f of specific ...
elementsABAB2AB3others 2. AB NaCl Strukturbericht - B1 Na Cl Halite Fm-3m (225) [cF8] 5.4533 5.4533 5.4533 90 90 90 Na at 0,0,0 Cl at 1/2,1/2,1/2 CsCl Strukturbericht - B2 Cs Cl Caesium chloride Pm-3m (221) [cP2]
The arrangement of atoms, ions, or molecules in a crystal. Crystals are solids having, in all three dimensions of space, a regular repeating internal unit of structure. Crystals have been studied using x-rays, which excite signals from the atoms. The signals are of different strengths and de...
STRUCTURE OF SOLIDS MiltonOhring, inEngineering Materials Science, 1995 3.2.2.3NaCl and CsCl Let us again consider the FCC Bravais lattice. If we now faithfully replace each point by a NaCl molecule motif, we can generate the common rocksalt structure depicted inFig. 3-7. In a slight struc...
various crystal structures: a CsCl structure for0.8<s0.95,NaCl structure for0.6s0.8,ZnS structures with gradual transition to a double fcc structure fors<0.6.We conclude that small variations in the interactions between unlike particles in a mixture suffice to change the crystal structure completely....
Binary crystals are composed of two elements. There are thousands of binary crystals; some examples are sodium chloride (NaCl), alumina (Al2O3), and ice (H2O). Crystals can also be formed with three or more elements. The unit cell Encyclopædia Britannica, Inc. A basic concept in ...
2) NHfil, NHiBr, and NHtI possess low temperature forms (with the CsCl-type structure) and high temperature forms (with the NaCl-type structure) iso-morphous with the potassium halides. There are also a few examples where the potassium salt has two modifications of which one is isomorphous...
1) CsCl crystal structure CsCl晶体结构2) CsCl crystal CsCl晶体 1. The proposed equation of state has been used to compute the pressure-volume behavior of NaCl crystal in the pressure range 0~30 GPa and CsCl crystal in the pressure range(0~40 GPa. 计算了室温下NaCl晶体在0~30 GPa压强...
Considering the energy conservation law, we deduce a general formula to calculate the dielectric constant (ε r) of alkali halide crystals(including the crystal structure of NaCl and CsCl) using the theory that the macroscopic electric storage energy is equal to the elastic displacement energy of ...