1[degrees], favors the appearance of the monoclinic
phase during crystallization of PE.
High strengths coincided with high tetragonal phase content and low strengths coincided with high monoclinic
Ng, A second monoclinic
modification of triphenylphosphine oxide hemihydrate, Acta Crystallogr.
Using value of C(u) and D(u) the expression for the total displacement field in the Monoclinic
layer and half space may be written as
The X-ray diffraction study revealed that the complexes possess a trigonal bipyramidal geometry and crystallizes in the monoclinic
crystal system, space group P21/c, with (1) a = 8.
Isotactic PP can exhibit four crystal structures: monoclinic
([alpha]), trigonal ([beta]), triclinic ([gamma]), and smectic ([delta]), whose formation depends on the melting history, crystallization temperature, pressure, and cooling rate, and the presence of nucleating agents or fillers [2, 28].
The promising properties of this ceramics are attributed to the stress-induced phase transformation from tetragonal to monoclinic
The typical m(111) and m(111) peaks of monoclinic
phase can be observed obviously in the XRD spectrum of the reconstituted powders, which indicates that the powders exhibit the presence of not only the tetragonal phase and the cubic phase, but also the monoclinic
71073 [Angstrom] Crystal system, space monoclinic
3]) stabilizes the tetragonal phase, so that, upon cooling, the tetragonal crystals made of ZrO2-Y2O3, can be maintained in meta stable state and not transforms in a monoclinic
The hexagonal HA form is usually formed by precipitation from supersaturated solutions at 25 [degrees]C to 100 [degrees]C and the monoclinic
form of HA is primarily formed by heating the hexagonal form at 850 [degrees]C in air and then cooling to room temperature .
It is possible that, on adding increased amounts of comonomer, the crystal structure changes from the commonly observed monoclinic
(PP) or orthorhombic (PE) to a hexagonal structure.