Abrasive Wear Resistance of Plasma-Sprayed Glass-Composite Coatings

Gawne, D. T.; Qiu, Z.; Bao, Y.; Zhang, T.; Zhang, K.

doi:10.1361/105996301770349114

Cited by 19 publications

(6 citation statements)

References 2 publications

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“…Due to the high temperature in the plasma, this technique is particularly fit for spraying ceramics, however, it has seldom been tested with glasses. [13][14][15][16][17][18][19] …”

Section: Introductionmentioning

confidence: 99%

Plasma-sprayed glass-ceramic coatings on ceramic tiles: microstructure, chemical resistance and mechanical properties

Bolelli

Cannillo

Lusvarghi

et al. 2005

Journal of the European Ceramic Society

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“…Due to the high temperature in the plasma, this technique is particularly fit for spraying ceramics, however, it has seldom been tested with glasses. [13][14][15][16][17][18][19] …”

Section: Introductionmentioning

confidence: 99%

Plasma-sprayed glass-ceramic coatings on ceramic tiles: microstructure, chemical resistance and mechanical properties

Bolelli

Cannillo

Lusvarghi

et al. 2005

Journal of the European Ceramic Society

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“…Recent research results on the possibility of the improvement of surface properties of wear resistant materials indicate that deposition of coatings by several processes could be a potential solution 5–8 . Among various methods, a well‐recognized method of increasing the strength of brittle materials is the introduction of surface compressive stress by depositing a coating material of lower coefficient of thermal expansion (CTE) 9 .…”

Section: Introductionmentioning

confidence: 99%

Is Glass Infiltration Beneficial to Improve Fretting Wear Properties for Alumina?

Sarkar

Basu

Chu

et al. 2007

Journal of the American Ceramic Society

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In this article, we report the tribological properties of the glassinfiltrated (GI) alumina with a major aim to understand scientifically the influence of glass infiltration on the underlying mechanisms of material removal (when fretted against steel). For this purpose, the test samples were fabricated by infiltrating molten borosilicate glass on a sintered alumina. Thermal expansion coefficient mismatch of two phases (3.5 Â 10 À6 1C À1 for glass and 9 Â 10 À6 1C À1 for alumina) causes residual compressive stresses, which assists in the enhancement of mechanical properties. Systematic fretting wear experiments were performed on as-sintered Al 2 O 3 and GI alumina surface against bearing steel under dry-unlubricated conditions at varying load (2 N, 5 N, and 10 N) with different fretting durations (10 000, 50 000, and 100 000 cycles). Relatively less variation in steady state COF (0.5-0.6) was measured for both the as-sintered Al 2 O 3 and GI Al 2 O 3 under the varying operating conditions. Laser surface profilometer analysis indicates that better wear resistance could be obtained for GI alumina at lower load (2 N) after 100 000 fretting cycles (7.5 Â 10 À6 mm 3 /N . m), in comparison with the bare or virgin alumina surface (1.1 Â 10 À5 mm 3 /N . m). Also, the wear rate decreases with an increase in load to 5 N and 10 N, with the lowest value of 1.5 Â 10 À6 mm 3 / N . m measured after fretting at 10 N load. Importantly, no noticeable difference in wear rate between as-sintered and GI alumina could be measured at a higher load (5 N, 10 N). Atomic force microscopy and X-ray diffraction analysis of wear debris illustrate that an amorphous tribolayer and finer debris particles, with composition of Fe(OH) 3 and/or Fe 2 SiO 4 , adhere to the worn surface. The formation of triboreaction products has been explained using thermodynamically feasible reactions. The major wear mechanisms depend on the applied load and are being identified as fatigue wear, three-body abrasion, and formation of a tribochemical layer.

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“…However, plasma-spraying has seldom been tested with glasses, except for a few cases, especially in the biomedical field. [4][5][6][7] Recently, further studies on plasma sprayed glasses have been performed from the point of view of the mechanical properties, both in composite coatings with alumina as reinforcement, [8][9][10][11] and as glaze substitutes on traditional ceramics substrates. 2,12 The latter research concerned an industrial high quality glass composition based on the CaO-ZrO 2 -SiO 2 (CZS) system.…”

Section: Introductionmentioning

confidence: 99%