نتایج جستجو برای: parasporal crystals
تعداد نتایج: 55581 فیلتر نتایج به سال:
Aluminophosphate-5 (AlPO4-5) nano-pore zeolite was synthesized. The effect of alteration in precursor gel preparation on the morphology of zeolite was studied. The effect of variety of synthesis conditions on the purity, crystal and pore size, and crystallinity of AlPO4-5 zeolite been studied. A hydrothermal synthesis has been used to produce nano-pore Aluminophosphate-5 c...
Aluminophosphate-5 (AlPO4-5) nano-pore zeolite was synthesized. The effect of alteration in precursor gel preparation on the morphology of zeolite was studied. The effect of variety of synthesis conditions on the purity, crystal and pore size, and crystallinity of AlPO4-5 zeolite been studied. A hydrothermal synthesis has been used to produce nano-pore Aluminophosphate-5 c...
crystallization of aluminum fluoride at atmospheric pressure has been considered. structure, size and shape of crystals formed during the crystallization process have been investigated. by applying the direct analysis method for the existed aluminum in solution, the aluminum fluoride nucleation process has been detected as a concentration valley at the outset of crystallization process. the lin...
The granitoid intrusions of Dehnow, which is located in northwest of Mashhad in immediate contact with garnet-rich hornfels, contain large crystals of garnets. They provide an excellent opportunity to study the effect of host rocks in contamination of a garnet-bearing granitoid magma. The garnet crystals contain abundant inclusions that are indicative of igneous phases and are arranged in a ci...
K1-x(NH4)xH2PO4 mixed crystals were grown by the low temperature solution growth method. [100] and [101] faces growth rates were investigated using an in-situ optical method. It was found that the growth rate of K1-x(NH4)xH2PO4 with x=o.1 and 0.9 along [101] is faster than that along [100]. FTIR spectra of the mixed crystals with selected composition values confirmed the presence of both sa...
Single crystals of binary semiconducto r CdSe were grown by subJimalion and conde nsation techniques wing ca rrier argon gas. Powder X-ray diffraction as well as Transmission e lectron microscopy o f powde red crystals confiml Ihe cryslal st ructure to be hexagonal with : a = 4.299 A, c = 7.010 A and space grope P6,MC
the cluster representation matrices have already been successfully used to enumerate close-packed vacancy clusters in all single-lattice crystals [i, 2]. point defect clusters in double-lattice crystals may have identical geometry but are distinct due to unique atomic postions enclosing them. the method of representation matrices is extended to make it applicable to represent and enumerate the ...
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