scholarly journals My Career as a Mineral Physicist at Stony Brook: 1976–2019

Minerals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 761
Author(s):  
Robert Cooper Liebermann
Keyword(s):  
High Pressure ◽  
Graduate Students ◽  
High Pressures ◽  
Physics Institute ◽  
Faculty Position ◽  
Mineral Physics ◽  
Princeton University ◽  
Structural Analogues ◽  
High Pressures And Temperatures ◽  
The U.S

In 1976, I took up a faculty position in the Department of Geosciences of Stony Brook University. Over the next half century, in collaboration with graduate students from the U.S., China and Russia and postdoctoral colleagues from Australia, France and Japan, we pursued studies of the elastic properties of minerals (and their structural analogues) at high pressures and temperatures. In the 1980s, together with Donald Weidner, we established the Stony Brook High Pressure Laboratory and the Mineral Physics Institute. In 1991, in collaboration with Alexandra Navrotsky at Princeton University and Charles Prewitt at the Geophysical Laboratory, we founded the NSF Science and Technology Center for High Pressure Research.

scholarly journals The Takahashi–Bassett Era of Mineral Physics at Rochester in the 1960s

Minerals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 344
Author(s):  
William A. Bassett
Keyword(s):  
High Pressure ◽  
High Pressures ◽  
Faculty Position ◽  
Mineral Physics ◽  
High Pressure High Temperature ◽  
High Pressures And Temperatures ◽  
The 1960S ◽  
Talented Students ◽  
The University

The late Taro Takahashi earned a particularly well-deserved reputation for his research at Lamont Geological Observatory on carbon dioxide and its transfer between the atmosphere and the oceans. However, his accomplishments in Mineral Physics, the field embracing the high-pressure–high-temperature properties of materials, has received less attention in spite of his major contributions to this emerging field focused on the interiors of Earth and other planets. In 1963, I was thrilled when he was offered a faculty position in the Geology Department at the University of Rochester, where I had recently joined the faculty. Taro and I worked together for the next 10 years with our talented students exploring the blossoming field just becoming known as Mineral Physics, the name introduced by Orson Anderson and Ed Schreiber, who were also engaged in measuring physical properties at high pressures and temperatures. While their specialty was ultrasonic velocities in minerals subjected to high pressures and temperatures, ours was the determination of crystal structures, compressibilities, and densities of such minerals as iron, its alloys, and silicate minerals, especially those synthesized at high-pressure, such as silicates with the spinel structure. These were materials expected to be found in the Earth’s interior and could therefore provide background for the interpretation of geophysical observations.

scholarly journals The Birth of Mineral Physics at the ANU in the 1970s

Minerals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 163
Author(s):  
Liebermann
Keyword(s):  
Graduate Students ◽  
High Pressures ◽  
Research Papers ◽  
Mineral Physics ◽  
Structural Analogues ◽  
National University ◽  
Shear Instabilities ◽  
High Pressures And Temperatures ◽  
Seismic Models ◽  
Elastic Shear

In 1970, I established the first mineral physics laboratory in Australia at the Australian National University (ANU) under the auspices of A.E. (Ted) Ringwood. Over the next six years, we published 25 research papers in peer-reviewed journals, many of them in collaboration with graduate students, Ian Jackson and Leonie Jones. This research was focused on measurements of sound velocities in minerals (and their structural analogues) at high pressures and temperatures, as well as studies of melting and elastic shear instabilities in materials and applications of these experimental data to interpreting seismic models of the Earth’s interior.

scholarly journals The thermal conductivity of the Earth's core and implications for its thermal and compositional evolution

2020 ◽  
Author(s):  
Kenji Ohta ◽  
Kei Hirose
Keyword(s):  
Thermal Conductivity ◽  
High Pressure ◽  
Thermal History ◽  
Diamond Anvil Cell ◽  
High Pressures ◽  
Iron Alloys ◽  
Compositional Evolution ◽  
The Earth ◽  
Diamond Anvil ◽  
High Pressures And Temperatures

Abstract Precise determinations of the thermal conductivity of iron alloys at high pressures and temperatures are essential for understanding the thermal history and dynamics of the metallic cores of the Earth. We review relevant high-pressure experiments using a diamond-anvil cell and discuss implications of high core conductivity for its thermal and compositional evolution.

scholarly journals Hochdrucksynthese quaternärer Chalkogenidhalogenide AB2X3Y (A = Cu, Ag; B = In; X = S, Se, Te; Y = Cl, Br, I)/High Pressure Synthesis of Quaternary Chalcogenide Halogenides AB2X3Y (A = Cu, Ag; B = In; X = S, Se, Te; Y = Cl, Br, I)

1983 ◽  
Vol 38 (2) ◽  
pp. 155-160 ◽  
Author(s):  
Klaus-Jürgen Range ◽  
Heinz-Joachim Hübner
Keyword(s):  
High Pressure ◽  
Crystal Structures ◽  
Spinel Structure ◽  
High Pressures ◽  
Reaction Pathways ◽  
High Pressure Synthesis ◽  
Quaternary Compounds ◽  
Pressure Synthesis ◽  
High Pressures And Temperatures

Abstract Quaternary compounds AB2X3Y (A = Cu, Ag; B = In; X = S, Se, Te; Y = Cl, Br, I) could be synthesized at high pressures and temperatures. The crystal structures found are defect-zincblende (AgIn2Se3I, AgIn2Te3l, CuIn2Se3Br, CuIn2Se3I, CuIn2Te3Cl, CuIn2Te3Br, CuInTe3I), spinel (AgIn2S3Cl, AgIn2S3Br, AgIn2Se3Cl, AgIn2Se3Br, AgIn2Se3l) and defect-rocksalt (AgIn2Te3Cl, AgIn2Te3Br). A second form of CuIn2Se3l is intermediate between the zincblende and spinel structure. A survey of the different reaction pathways of AB-B2X3 mixtures at high pressures and temperatures is given.

Dimerization of Carboxylic Acids in Solution up to High Pressures and Temperatures. 1. Pivalic Acid

1987 ◽  
Vol 42 (2) ◽  
pp. 187-196
Author(s):  
E. M. Borschel ◽  
M. Buback
Keyword(s):  
Hydrogen Bond ◽  
High Pressure ◽  
Ir Spectroscopy ◽  
Quantitative Measurement ◽  
High Pressures ◽  
Pressure Effect ◽  
Pivalic Acid ◽  
Dilute Solution ◽  
Hydrogen Bond Strength ◽  
High Pressures And Temperatures

Pivalic acid in dilute solution of n-heptane and of CCl4 is studied via IR spectroscopy in the region of the C = O and O - H stretching fundamentals up to pressures of 2 kbar and temperatures of 175 °C. Lambert-Beer's law is shown to be valid for the C = O modes of the acid monomer and of the hydrogen-bonded cyclic dimer, which enables the quantitative measurement of the dimerization equilibrium as a function of pressure and temperature. Increasing pressure favours the dimerization in n-heptane to a larger extent than in CCl4 solution. In both solvents this pressure effect increases with temperature. The hydrogen bond strength within the dimer species is slightly reduced toward high pressure. The data on the temperature dependence of the dimerization volume and on the pressure dependence of the dimerization enthalpy are compared with direct information on both species as derived from their O - H fundamental modes.

Die Kinetik des Zerfalls von tert. Butylperoxypivalat bei hohen Drücken und Temperaturen / The Kinetics of the Decomposition of tert.Butylperoxypivalate up to High Pressures and Temperatures

1981 ◽  
Vol 36 (12) ◽  
pp. 1371-1377 ◽  
Author(s):  
M. Buback ◽  
H. Lendle
Keyword(s):  
Activation Energy ◽  
High Pressure ◽  
High Pressures ◽  
Activation Volume ◽  
Rate Law ◽  
First Order ◽  
Order Rate ◽  
High Pressures And Temperatures ◽  
Kinetics Of

AbstractThe decomposition of tert. butylperoxypivalate dissolved in n-heptane has been measured ir-spectroscopically in optical high-pressure cells up to 2000 bar at temperatures between 65 °C and 105 °C. The reaction follows a first order rate law with an activation energy Ea = 122.3 ±3.0 kJ · mol-1 and an activation volume ⊿V≠ = 1.6 ± 1.0 cm3 mol-1 .

Hochdruckumwandlungen von Cer(III)Orthovanadat(V), CeVO4 / High-Pressure Transformations of Cerium(III) Orthovanadate(V), CeVO4

1990 ◽  
Vol 45 (5) ◽  
pp. 598-602 ◽  
Author(s):  
Klaus-Jürgen Range ◽  
Helmut Meister ◽  
Ulrich Klement
Keyword(s):  
High Pressure ◽  
Triple Point ◽  
High Pressures ◽  
Its Region ◽  
Normal Pressure ◽  
Crystal Data ◽  
High Pressures And Temperatures ◽  
Zircon Type ◽  
High Pressure Apparatus

The polymorphism of CeVO4 was investigated at high pressures and temperatures in a Belttype high-pressure apparatus. In addition to the normal-pressure modification CeVO4— I with zircon-type structure two high-pressure modifications have been found, viz. monazite-type CeVO4—II and scheelite-type CeVO4—III. CeVO4—II is stable between 1 bar and 30 kbar at 1300 °C. Its region of existence decreases rapidly at lower temperatures. From the observed p,T-relations for the I-II and I-III transformations a triple point CeVO4—I,II,III at about 27 kbar, 500 °C can be estimated. For kinetic reasons, however, the experimental determination of phase relations becomes difficult at temperatures below 600 °C.The crystal structures of CeVO4— I and —II have been refined from single-crystal data. Crystallographic data for the three modifications are given and discussed (CeVO4—I: I 41/amd, a = 7.383(1)Å, c = 6.485(1)Å, Z = 4; CeVO4—II: P21/n, a = 7.003(1)Å, b = 7.227(1)Å, c = 6.685(1)Å, β = 105.13(1)°, Z = 4; CeVO4—III: I 41/α, a = 5.1645(2)Å, c = 11.8482(7)Å, Z = 4).

Infrarotabsorption von reinem Dichlormethan bis zu hohen Drücken und Temperaturen / Infrared Absorption of Pure Dichloromethane Measured up to High Pressures and Temperatures

1979 ◽  
Vol 34 (12) ◽  
pp. 1489-1495
Author(s):  
M. Buback ◽  
E. U. Franck ◽  
H. Lendlc
Keyword(s):  
High Pressure ◽  
Single Crystal ◽  
Infrared Absorption ◽  
High Pressures ◽  
Molar Absorptivity ◽  
Polar Materials ◽  
Bending Mode ◽  
High Pressures And Temperatures ◽  
Window Material ◽  
Repulsive Forces

Abstract The infrared absorption of the ν1 and ν6 stretching fundamentals and of the ν2 CH2-bending mode in pure dichloromethane has been measured up to pressures and temperatures of 2 kbar and 200 °C, respectively. The optical high pressure cells were equipped with CaF2 single crystal windows. The applicability of this window material at high pressures and temperatures was investigated.With increasing density the wavenumbers of maximum absorption of ν1 and ν2 shift to lower and of ν6 to higher values. The integrated molar absorptivity of ν2 and ν6 increases with in-creasing density while it remains nearly constant for the ν1 vibration.The results obtained for the C-H modes clearly differ from those measured for O-H or N-H vibrations in polar materials. They are attributed to the action of repulsive forces in dense CH2Cl2.

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