Mechanochemical Phenomena during Fine Comminution of Clay Minerals for Ceramic Bricks and Roof-Tiles

Gömze, László A.

doi:10.4028/www.scientific.net/msf.659.19

Cited by 11 publications

(1 citation statement)

References 18 publications

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“…1c). In an earlier study [1] and [13], powder disaggregation during milling was accompanied by an increase in the percentage of an X-ray amorphous (quasi-amorphous) phase: the X-ray diffraction pattern of the powder showed an increased background at small diffraction angles, and the particles in electron-microscopic images had a halo.…”

Section: Resultsmentioning

confidence: 99%

Structure and mechanical properties of ZrO2-based systems

Kulkov¹,

Buyakova²,

Gömze³

2014

Epitoanyag - JSBCM

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the structure and phase composition of zirconia-based nanosystems are studied. it is shown that during mechanical activation this nanosystem is divided into two subsystems with the average size of structural elements differing by two orders of magnitude. the fraction of the quasiamorphous (X-ray amorphous) phase therewith increases. through varying the heating rate of such a nanosystem in sintering we may purposefully vary its shrinkage at the stage of isothermal sintering. it is shown that through heating rate variation at sintering of such a nanosystem one can purposefully vary its shrinkage at the isothermal sintering stage. the higher the sintering temperature, the slower the compaction process at the isothermal stage. this allows producing materials with various porosity values but high strength of sintered material. keywords: ceramics, mechano-chemistry, nanostructure, nanocrystalline zro 2 , phase composition, sinteringProf. Sergey N. Kulkov Head of Department of ceramics in the institute of strength Physics and materials science of the russian Academy of science since 1989. He has got scientific degrees "candidate of Physics and mathematical sciences" at tomsk state university in 1981; and "Doctor of Physics and mathematical sciences" in 1990. since 1992 he's working as professor both in tomsk state university and in tomsk Polytechnic university. He has a wide range experiments in research of structural ceramic composites and in development of new material composition and technology of high-tech products. His research works are represented in 5 books, more than 150 articles, 18 patents and many international symposiums and conferences. in 1997 he had a soros Professor grant. At present he is head of chair "theory of strength and mechanic of solids", member of "the American ceramic society" of "the APmi-international" and the DymAt society (France). His scientific activities are the followings: ceramic matrix composites with transformation toughening, transformations and mechanical properties, shockwave treatment of ceramic powders, superplasticity of cmc, ceramic and ceramic reinforced metal fiber with high porosity for medical applications.Prof. Svetlana P. Buyakova Doctor of sciences from 2008, full Professor from 2013. she is specialist in material sciences of ceramic and ceramic matrix composites based on oxides and carbides. she is author and co-author more than 100 papers. three Ph.D. students and one person makes they dissertations under her guidance in period 2010-2013. now, she is chief scientist in isPms rAs and professor in tomsk state university and tomsk Polytechnic university. Her teaching experience: introduction to materials science, Fundamentals of materials engineering, materials and their Applications.Prof. László A. Gömze establisher (in july 1st, 1999) and head of Department of ceramics and silicate engineering in the university of miskolc, Hungary. since then 7 students from the department have successfuly completed their PhD theses and 4 of them were managed by Prof. Gömze...

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Section: Resultsmentioning

confidence: 99%

Structure and mechanical properties of ZrO2-based systems

Kulkov¹,

Buyakova²,

Gömze³

2014

Epitoanyag - JSBCM

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The influence of several silicates on the fretting behavior of UHMWPE composites

Meng

Wang

Xin

et al. 2020

J of Applied Polymer Sci

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Five kinds of silicates (attapulgite, kaolin, montnorillonite, synthetic mica, and talc) reinforced ultra‐high molecular weight polyethylene (UHMWPE) composites were prepared. The fretting performance of the composites was investigated using an oscillating reciprocating friction and wear tester in a ball‐on‐plate mode. The thermodynamic property and crystallinity of the composites were evaluated, and the worn morphology was also observed. Result shows that the heat‐resistance and the crystallinity of the composites are generally improved. The friction coefficient and mass loss of the composites reduced than those of the neat UHMWPE. Thereinto, the attapulgite/UHMWPE composite shows the best fretting resistance performance. The heat resistance of composites increases due to the reinforcement of silicates. Meantime, the friction load can be distributed by the filler in the matrix. Moreover, the different fretting resistance performance of the composites is due to the different dispersion degree and the interfacial bonding force between the fillers and the UHMWPE matrix.

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