Ranran Liu Email and Phone Number

Ceramic materials

Ceramic Materials: Coating Solutions and hBN

R&D in ceramic thermal spray powders (TSPs); thermal spray technology (plasma spray and flame spray); technical suppport to plants and sales

Thermal spray powders development and applicationsTechnical support to the business of coating solutionsImplementation of new productions of ceramic powders

Set up an air plasma spraying (APS) system• Installed Sulzer Metco 9MC APS system;• Fabricated APS yttria-stabilized zirconia (YSZ) coatings as thermal barrier coating (TBC);• Studied phase information and mechanical properties of APS alumina coatings by nanoindentation;• Developed an analytical model for nanoindentation on APS alumina coatings.Produced aluminum/nickel (Al/Ni) multilayers by magnetron sputtering • Improved Denton Vacuum magnetron sputtering system by adding extra gas input and readout;• Produced Al/Ni multilayered thin films for joining applications as a localized heating source;• Established a simple method for evaluating elastic modulus of thin films by nanoindentation;• Simulated heat transfer process of Al/Ni reactive multilayered thin films using COMSOL.Fabricated Ni-YSZ cermets for solid oxide fuel cells (SOFCs)• Synthesized uniformed YSZ nanofibers by electrospinning of YSZ dispersion;• Electrolessly plated a layer of Ni on sintered YSZ fibers;• Examined porosity, density, shrinkage, and microstructure of Ni-YSZ cermets.

Internship, Liyang Aeroengine Corporation of Guizhou Aviation Industry Corporation (GAIC), affiliated with China Aviation Industry Corporation, Liyang, Guizhou, China June 2005 to August 2005• Designed aircraft power engine models and made improvements to existing aircraft parts/assemblies. Gathered and analyzed experimental data to identify engine performance