Published 4 issues per year
ISSN Print: 1093-3611
ISSN Online: 1940-4360
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Plasma sprayed basalt/chromium oxide coatings
ABSTRACT
Volcanic basalt and chromium oxide (Cr2O3) have been co-sprayed in air with a direct current (d.c.) plasma to obtain composite coatings. Both powders were simultaneously injected by two separated injectors. The following spray parameters: arc current, hydrogen vol % and total plasma forming gas mass flow rate were optimized as well as injector positions. Different mass ratios of both components were used to achieve coatings. An uniform distribution of basalt among the Cr2O3 lamellae has been observed with SEM for all composite coatings. XRD showed that chromia became amorphous in the composite basalt/chromia coatings.
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Ctibor Pavel, Nevrla Barbara, Pala Zdenek, Sedlacek Josef, Soumar Jan, Kubatik Tomas, Neufuss Karel, Vilemova Monika, Medricky Jan, Study on the plasma sprayed amorphous diopside and annealed fine-grained crystalline diopside, Ceramics International, 41, 9, 2015. Crossref
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Ctibor Pavel, Nevrlá Barbara, Neufuss Karel, Petrášek Jan, Sedláček Josef, Plasma Spray Coatings of Natural Ores From Structural, Mechanical, Thermal, and Dielectric Viewpoints, Coatings, 10, 1, 2019. Crossref
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Xu Meiling, Kang Shumei, Lu Jinlin, Yan Xinyong, Chen Tingting, Wang Zimeng, Properties of a Plasma-Nitrided Coating and a CrNx Coating on the Stainless Steel Bipolar Plate of PEMFC, Coatings, 10, 2, 2020. Crossref
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Nevrla Barbara, Ctibor Pavel, Koudelkova Veronika, Lukac Frantisek, Neufuss Karel, Plasma spraying of natural kaolinite and metakaolinite, Boletín de la Sociedad Española de Cerámica y Vidrio, 60, 5, 2021. Crossref