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Chemistry

D-Index
71
Citations
21109
World Ranking
5468
National Ranking
138

Research.com Recognitions

  • 1993 - Fellow of the Royal Society of Canada Academy of Science

Overview

G. P. Johari is a researcher affiliated with McMaster University in Canada. The main areas of their research include materials science and engineering, with a focus on materials chemistry, biomedical engineering, geophysics, organic chemistry, and ceramics and composites. Johari's work spans topics related to material dynamics and properties, phase equilibria and thermodynamics, chemical thermodynamics and molecular structure, high-pressure geophysics and materials, glass properties and applications, fossil insects in amber, and geological and geochemical analysis.

The scientist has published extensively, with a strong presence in the journal Thermochimica Acta, contributing six publications there. Other venues include The Journal of Physical Chemistry B with two publications, the Journal of Non-Crystalline Solids with two publications, The Philosophical Magazine A Journal of Theoretical Experimental and Applied Physics, and The Journal of Chemical Physics.

Recent papers authored or co-authored by Johari include:

  • Entropy, enthalpy and volume of perfect crystals at limiting high pressure and the third law of thermodynamics, 2021, Thermochimica Acta
  • Endothermic Effects on Heating Physically Aged Sucrose Glasses and the Clausius Theorem Violation in Glass Thermodynamics, 2020, The Journal of Physical Chemistry B
  • Decrease in heat capacity and enthalpy of an aging glass - A conflict with standard procedure for determining enthalpy loss and fictive temperature, 2020, Thermochimica Acta
  • Variation of entropy and volume of liquids with pressure and their Kauzmann- and Simon-type extrapolations toward zero entropy, 2021, Thermochimica Acta
  • Prigogine-Defay ratio and its change with fictive temperature approaching the ideal glass transition, 2022, Thermochimica Acta

Frequent co-authors in Johari's work include E. Tombari, Daniele Sonaglioni, Ove Andersson, P. Lunkenheimer, and A. Loidl. Collaboration with E. Tombari is particularly notable with five joint publications.

G. P. Johari's research contributes to advancing the understanding of thermodynamic properties and behavior of materials under various conditions, with special attention to high pressure and glass states. Their work intersects both fundamental and applied aspects of materials science.

Recognition of their academic contributions includes being named a Fellow of the Royal Society of Canada in 1993 by the Academy of Science.

Best Publications

  • Viscous Liquids and the Glass Transition. II. Secondary Relaxations in Glasses of Rigid Molecules

    Gyan P. Johari;Martin Goldstein

  • The glass–liquid transition of hyperquenched water

    G. P. Johari;Andreas Hallbrucker;Erwin Mayer

  • GLASS TRANSITION AND SECONDARY RELAXATIONS IN MOLECULAR LIQUIDS AND CRYSTALS

    G. P. Johari

  • Viscous Liquids and the Glass Transition. III. Secondary Relaxations in Aliphatic Alcohols and Other Nonrigid Molecules

    Gyan P. Johari;Martin Goldstein

  • Intrinsic mobility of molecular glasses

    Gyan P. Johari

  • Glass-liquid transition and the enthalpy of devitrification of annealed vapor-deposited amorphous solid water: a comparison with hyperquenched glassy water

    Andreas Hallbrucker;Erwin Mayer;G. P. Johari

  • Localized molecular motions of β-relaxation and its energy landscape

    G.P Johari

  • Molecular theory for the rheology of glasses and polymers.

    JY Cavaille;J Perez;GP Johari

  • The dielectric properties of ice Ih in the range 272–133 K

    G. P. Johari;E. Whalley

  • Effect of annealing on the secondary relaxations in glasses

    G. P. Johari

  • Dielectric relaxations in the liquid and glassy states of glucose and its water mixtures

    R. K. Chan;K. Pathmanathan;G. P. Johari

  • Molecular mobility in simple glasses

    Gyan P. Johari;Martin Goldstein

  • A resolution for the enigma of a liquid’s configurational entropy-molecular kinetics relation

    G. P. Johari

  • Thermodynamic continuity between glassy and normal water

    G. P. Johari;Gerhard Fleissner;Andreas Hallbrucker;Erwin Mayer

  • Dielectric properties of glycerol in the range 0.1–105 Hz, 218–357 K, 0–53 kb

    Unknown

  • Calorimetric studies of the kinetic unfreezing of molecular motions in hydrated lysozyme, hemoglobin, and myoglobin

    G. Sartor;E. Mayer;G.P. Johari

  • Two Calorimetrically Distinct States of Liquid Water Below 150 Kelvin

    G. P. Johari;Andreas Hallbrucker;Erwin Mayer

  • Contributions to the entropy of a glass and liquid, and the dielectric relaxation time

    G. P. Johari

  • The heat capacity and glass transition of hyperquenched glassy water

    Andreas Hallbrucker;Erwin Mayer;G. P. Johari

  • X-ray study of high-density amorphous water.

    L. Bosio;G. P. Johari;J. Teixeira

  • Crystallization kinetics of water below 150 K

    Wolfgang Hage;Andreas Hallbrucker;Erwin Mayer;G. P. Johari

Frequent Co-Authors

Erwin Mayer
Erwin Mayer University of Innsbruck
Andreas Hallbrucker
Andreas Hallbrucker University of Innsbruck
Jean-Yves Cavaillé
Jean-Yves Cavaillé Institut National des Sciences Appliquées de Lyon
John W. Goodby
John W. Goodby University of York
Peter Lunkenheimer
Peter Lunkenheimer University of Augsburg
Alois Loidl
Alois Loidl University of Augsburg
Jean-Louis Viovy
Jean-Louis Viovy Institute Curie
Bertil Sundqvist
Bertil Sundqvist Umeå University

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