Oxidation and Ablation Resistance of Low Pressure Plasma-Sprayed ZrB2-Si Composite Coating

Niu, Yaran; Wang, Hongyan; Huang, Liping; Li, Hong; Liu, Xuanyong; Zheng, Xuebin; Ding, Chuanxian

doi:10.1007/s11666-013-0020-y

Cited by 14 publications

(3 citation statements)

References 20 publications

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“…The measured porosities of ZM2 and ZM4 were about 6.5% and 4.3%, respectively. The porosity of the pure ZrB 2 coating was about 9.2% [13]. The addition of MoSi 2 is beneficial to improving the density of the composite coating.…”

Section: Compositions and Microstructuresmentioning

confidence: 95%

“…Zirconium diboride (ZrB 2 ) is typical among UHTCs, because of its excellent and unique combination of high melting temperature, high thermal conductivity and superior thermal shock resistance. Some studies reported the fabrication of ZrB 2 [11], ZrB 2 -SiC [12] and ZrB 2 -Si coatings [13] via LPPS. In our previous work, MoSi 2 incorporated ZrB 2 coating was made by LPPS [14].…”

Section: Introductionmentioning

confidence: 99%

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Microstructure evolution of ZrB2–MoSi2 composite coatings at middle and high temperatures

Niu

Wang

Liu

et al. 2015

Surface and Coatings Technology

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Section: Compositions and Microstructuresmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Microstructure evolution of ZrB2–MoSi2 composite coatings at middle and high temperatures

Niu

Wang

Liu

et al. 2015

Surface and Coatings Technology

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“…Plasma spraying is one of the reliable ways to manufacture ceramic coatings with high-melting points (Ref [14][15][16]. During plasma spray, ceramic powders were melted and accelerated in the plasma flame, which were deposited directly on the surface of the substrate and rapidly solidified to form coatings.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Ablation Properties of Y2SiO5 Coating for SiC-Coated C/C Composites by Supersonic Plasma Spraying

Zhang

Zhuang

et al. 2015

J Therm Spray Tech

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Y 2 SiO 5 coating was prepared on the surface of SiC-coated C/C composites by supersonic plasma spraying at different powers of 35, 40, 45, and 50 kW. The microstructures and phase compositions were characterized by scanning electron microscopy and x-ray diffraction, respectively. Roughness of the coating was measured by a confocal laser scanning microscope. Bonding force between Y 2 SiO 5 outer coating and SiC inner coating was measured by a scratch tester. The results show that Y 2 SiO 5 coating prepared at the spraying power of 45 kW possesses the biggest deposition rate, minimum surface roughness (Ra = 11.12 lm), and maximum bonding force (up to 28 N). The linear and mass ablation rates of Y 2 SiO 5 coating prepared at 45 kW are 2.6 lm/s and 0.031 mg cm 22 s 21 in the heat flux of 2.38 MW/m 2 under oxyacetylene torch. During ablation, a glassy layer of SiO 2 + Y 2 O 3 was formed, acting as a barrier to high-speed gas flow of oxyacetylene flame.

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Plasma sprayed cerium oxide coating inhibits H2O2-induced oxidative stress and supports cell viability

Xie

You

et al. 2016

J Mater Sci: Mater Med

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Oxidative stress is a risk factor in the pathogenesis of osteoporosis, and plays a major role in bone regeneration of osteoporotic patients. Cerium oxide (CeO2) ceramics have the unique ability to protect various types of cells from oxidative damage, making them attractive for biomedical applications. In this study, we developed a plasma sprayed CeO2 coating with a hierarchical topography where ceria nanoparticles were superimposed in the micro-rough coating surface. The protective effects of the CeO2 coating on the response of osteoblasts to H2O2-induced oxidative stress have been demonstrated in terms of cell viability, apoptosis and differentiation. The CeO2 coating reversed the reduced superoxide dismutase activity, decreased reactive oxygen species production and suppressed malondialdehyde formation in H2O2-treated osteoblasts. It indicated that the CeO2 coating can preserve the intracellular antioxidant defense system. The cytocompatibility of the CeO2 coating was further assessed in vitro by cell viability assay and scanning electron microscopy analysis. Taken together, the CeO2 coating could provide an opportunity to be utilized as a potential candidate for bone regeneration under oxidative stress.

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Oxidation and Ablation Resistance of Low Pressure Plasma-Sprayed ZrB2-Si Composite Coating

Cited by 14 publications

References 20 publications

Microstructure evolution of ZrB2–MoSi2 composite coatings at middle and high temperatures

Microstructure evolution of ZrB2–MoSi2 composite coatings at middle and high temperatures

Preparation and Ablation Properties of Y2SiO5 Coating for SiC-Coated C/C Composites by Supersonic Plasma Spraying

Plasma sprayed cerium oxide coating inhibits H2O2-induced oxidative stress and supports cell viability

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