On the Shock Behaviour of Anhydrite: Experimental Results and Natural Observations

Relative Shock Effects in Mixed Powders of Calcite, Gypsum, and Quartz: a Calibration Scheme from Shock

Introduction: The shock behavior of calcite and gyp-sum is important in understanding the Cretaceous/Tertiary event and other terrestrial impacts that contain evaporite sediments in their targets. Most interest focuses on issues of devolatilization to quantify the production of CO 2 or SO 2 to better understand their role in generating a temporary atmosphere and its effects on climate and biota...

Air Plasma Sprayed Bond Coat Oxidation Behavior and its Resistance to Isothermal and Thermal Shock Loading

An experimental investigation was conducted to find the effect of spraying method of coating of Thermal Barrier Coatings (TBCs) on their oxidation behaviour and resistance to various thermal loading. Isothermal and thermal shock tests were performed in order to study oxidation behaviour of air plasma sprayed Bond Coat (BC) and assess its effect on TBCs lifetime under the stated loadings. Specim...

EFFECT OF COMPOSITION ON THE MAGNETIC BEHAVIOUR OF Gd2X COMPOUND

The eigenvalues of the isotropic magnetic interaction system extraction from Internal Field Approximation (IFA) q e computed. on the basis of RKKY for the complicated magnetic behaviour of Gd, X system X= (Au , Pt , Al , In ) as well as Gd. From the strength and slope of eigenvalue curves in different ranges of interaction the strength and sharpness of the magnetic transition can be suggest...

Experimental Shock Transformation of Gypsum to Anhydrite: a New Low Pressure Regime Shock Indicator

SHOCK INDUCED VAPORIZATION OF ANHYDRITE CaS04 AND CALCITE CaCO3

Discovery of abundant anhydrite (CaS04) and gypsum (CaS0+2HzO) in the otherwise carbonate sediments comprising the upper portion of the rocks contained within the Chicxulub impact crater has prompted research on the shock-induced vaporization of these minerals. We use a vaporization criterion determined by shock-induced entropy. We reanalyze the shock wave experiments of Yang [ 11. He shocked 3...