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西华大学高分子物理英文课件Chapter3 Regular chains and crystallinity
近日,中国地质大学地质过程与矿产资源国家重点实验室赵来时教授团队在国际著名期刊《Geochimica et Cosmochimica Acta》发表题为Raman spectral, elemental, crystallinity, and oxygen-isotope variations in conodont apatite during diagenesis(牙形石磷灰石的拉曼光谱、元素...
Abstract: Thermal maturity of the Lower Cretaceous Sindong and Hayang groups in the Gyeongsang Basin, Korea, was investigated using the Kübler illite “crystallinityindex (KI) which is based on the n...
Abstract: The Kübler Index (KI) is defined as the full width at half-maximum height (FWHM) of the 10-Å X-ray diffraction peak of illite-smectite interstratified (I-S) clay minerals. The only par...
Abstract: Hydrothermal syntheses were performed at various pH values and temperatures to induce variability in kaolinite defect density. Temperature of synthesis ranged from 200 to 240°C, for 21 d. In...
Abstract: This study examines the influence of minerals and amorphous phases associated with kaolin and kaolinitic rocks on kaolinite crystallinity indices (KCI) derived from X-ray diffraction (XRD) d...
Abstract: Illite crystallinity and fluid inclusion techniques are used to understand the thermal histories of rocks on either side of the disconformity between the Lower and Upper Paleozoic strata in ...
Clay mineralogy (including illite crystallinity) was studied in Pennsylvanian synorogenic sediments (Atoka Formation) in the subsurface of the Arkoma Basin and the adjacent Ouachita thrust belt. Vitri...
Goethites were synthesized from ferrihydrite in 0.7 M KOH between 4?and 90癈. As temperatures increased, the goethite crystals became larger and of less domainic character, and surface areas decreased ...
Mineralogy, kaolin crystallinity, Fe content, 銸18, and 銬 were determined for late Cretaceous 搒oft?and early Tertiary 揾ard?Georgia kaolins. The crystallinity of the <0.5-, 0.5?.0-, and 1.0?.0- 祄 size f...
Diffractograms of lepidocrocites formed from the oxidation of Fe(II) chloride solutions at pH 7 and 25∑C showed differential line broadening with (0k0) reflections being much sharper than (hk0) or (hk...
Infrared spectra of two minerals; Urkut quartz (Hungary) and a Swedish feldspar, of different origin with different physical characteristics and crystallinity were studied. Samples were taken after ap...
Effects of particle size, crystallinity and the amount of the structural water in kaolinites on their infrared spectra, were studied. The samples were ground in a vibrating ball-mill, and infrared and...
This paper presents further results concerning the nature of the exothermic reaction of meta-kaolinite near 950°C. In a previous work (Lemaitre et al., 1975), we proposed that the exothermic effect ha...
The crystallinity of minerals in terms of crystallite size distribution and lattice perfection is quantified by means of statistical measures derived from X-ray line profiles (2 σ values). A low degre...

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