An X-ray study of the temperature dependence of the quartz structure

  title={An X-ray study of the temperature dependence of the quartz structure},
  author={Kuniaki Kihara},
  journal={European Journal of Mineralogy},
  • K. Kihara
  • Published 1990
  • Physics
  • European Journal of Mineralogy
Experimental calibration of the reduced partition function ratios of tetrahedrally coordinated silicon from the Debye–Waller factors
We present a new force constants approach that combines experimental and theoretical data to constrain the reduced partition function ratio (β\documentclass[12pt]{minimal} \usepackage{amsmath}
In search of the crystal structure of low quartz
Abstract A comparison of numerous determinations of unit cell dimensions and of crystal structure refinements of low quartz, SiO2, shows that there exists no study at a defined temperature and at
Improved volume variable cluster model method for crystal-lattice optimization: effect on isotope fractionation factor
The isotopic fractionation factor and element partition coefficient can be calculated only after the geometric optimization of the molecular clusters is completed. Optimization directly affects the
Reverse engineering of ceramic anthropomorphic figurines from the Tumaco archaeological tradition in southwest Colombia
Traditional studies of archaeological ceramics in Colombia have been largely based on visual and stylistic analyses. Here we introduce frameworks and concepts of reverse engineering as a
Intrinsic Elastic Anisotropy of Westerly Granite Observed by Ultrasound Measurements, Microstructural Investigations, and Neutron Diffraction
Westerly granite (WG) has been generally accepted as an isotropic homogeneous rock. Here, we return to WG and observe significant elastic anisotropy using multidirectional ultrasonic sounding on
Novel X-ray Diffraction and the Remote Analysis of Mars
The scientific exploration of Mars is currently being undertaken with the goals: to determine if Mars ever supported life; to understand the past and present climate; and to understand the evolution
On the elasticities of quartz across the α–β phase transformation
The purpose of this paper is to describe the behavior of the elasticities of quartz across the α–β phase transformation at room pressure. In spite of the known dynamic behavior of quartz, we adhere
The compression pathway of quartz
Abstract The structure of quartz over the temperature domain (298 K, 1078 K) and pressure domain (0 GPa, 20.25 GPa) is compared to the following three hypothetical quartz crystals: (1) Ideal α-quartz
X-ray, DTA and Raman studies of monoclinic tridymite and its higher temperature orthorhombic modification with varying temperature
Unit-cell parameters, Raman scattering profiles and DTA curves were measured on monoclinic tridymite from fired silica brick. Ten peaks appear in the Raman measurements from 100 to 1250 cm at 25°C,