J
John J. Mecholsky
Researcher at University of Florida
Publications - 135
Citations - 4966
John J. Mecholsky is an academic researcher from University of Florida. The author has contributed to research in topics: Fracture mechanics & Fracture toughness. The author has an hindex of 39, co-authored 129 publications receiving 4644 citations. Previous affiliations of John J. Mecholsky include Pennsylvania State University & National Institute of Standards and Technology.
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Preparation of Ag/SiO2 nanosize composites by a reverse micelle and sol-gel technique
TL;DR: In this paper, spherical nanosize Ag/SiO2 composite particles have been synthesized within reverse micelles via metal alkoxide hydrolysis and condensation, and the size of the particles and the thickness of the coating can be controlled by manipulating the relative rates of the hydroxysilane (TEOS) reactions within the microemulsion.
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Prediction of Fracture Energy and Flaw Size in Glasses from Measurements of Mirror Size
TL;DR: The average ratios of inner and outer mirror radii to flaw size were ∼10:1 and ∼13:1, respectively, for most of the glasses as discussed by the authors, and critical fracture energies from either flaw or mirror size agreed very well with those obtained by double-cantilever-beam measurements.
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Quantitative Analysis of Brittle Fracture Surfaces Using Fractal Geometry
TL;DR: Fractal geometry is a non-Euclidean geometry which has been developed to analyze irregular or fractional shapes In as mentioned in this paper, fracture in ceramic materials is analyzed as a fractal process.
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Recent developments in the preparation and properties of nanometer-size spherical and platelet-shaped particles and composite particles
James H. Adair,Tuo Li,T. Kido,K.S. Havey,Jooho Moon,John J. Mecholsky,Augusto A. Morrone,Daniel R. Talham,M.H. Ludwig,L. Wang +9 more
TL;DR: In this article, the optical properties of nanometer-sized composite particles with a core-shell structure have been reviewed, and it was found that a strong chemical affinity between the metal salt and the polar head group of amphiphilic molecules and the anisotropic structure of microemulsion systems play a premier role in the growth.
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Fracture surface analysis of ceramics
TL;DR: In this article, the A-KIC relationship was used to predict critical flaw sizes in glass, glass ceramics, and single and polycrystalline ceramic materials, and it was shown that the elastic modulus is proportional to the mirror constant and probably to the critical fracture energy.