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Bimodal distribution characteristic of microstructure and mechanical properties of nanostructured composite ceramic coatings prepared by supersonic plasma spraying
Highlights The microstructure of NCs exhibited a bimodal distribution. The proportions of FM and PM regions both increased with spray power increasing. The mechanical properties followed Weibull distribution.
Abstract Nanostructured composite ceramic coatings (NCs) were deposited by supersonic plasma spraying (SPS) technique. The microstructures of NCs were characterized using scanning electron microscope (SEM), X-ray diffraction (XRD) and transmission electron microscope (TEM). The results showed that the microstructure of NCs exhibited a bimodal distribution consisting of fully melted regions (FM regions) and partially melted regions (PM regions). With the spray power increasing, the proportions of FM regions and PM regions both increased, but no distinct laws were found. The measured data of elastic modulus, micro-hardness and fracture toughness were analyzed using Weibull statistics. The results showed that these micromechanical properties followed Weibull distribution and presented a characteristic of bimodal distribution.
Bimodal distribution characteristic of microstructure and mechanical properties of nanostructured composite ceramic coatings prepared by supersonic plasma spraying
Highlights The microstructure of NCs exhibited a bimodal distribution. The proportions of FM and PM regions both increased with spray power increasing. The mechanical properties followed Weibull distribution.
Abstract Nanostructured composite ceramic coatings (NCs) were deposited by supersonic plasma spraying (SPS) technique. The microstructures of NCs were characterized using scanning electron microscope (SEM), X-ray diffraction (XRD) and transmission electron microscope (TEM). The results showed that the microstructure of NCs exhibited a bimodal distribution consisting of fully melted regions (FM regions) and partially melted regions (PM regions). With the spray power increasing, the proportions of FM regions and PM regions both increased, but no distinct laws were found. The measured data of elastic modulus, micro-hardness and fracture toughness were analyzed using Weibull statistics. The results showed that these micromechanical properties followed Weibull distribution and presented a characteristic of bimodal distribution.
Bimodal distribution characteristic of microstructure and mechanical properties of nanostructured composite ceramic coatings prepared by supersonic plasma spraying
Kang, Jia-jie (author) / Ma, Jian-long (author) / Li, Guo-lu (author) / Wang, Hai-dou (author) / Xu, Bin-shi (author) / Wang, Cheng-biao (author)
2014-08-14
5 pages
Article (Journal)
Electronic Resource
English
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