Ceramic based lightweight composites with extreme dynamic strength

2nd International Conference on Competitive Materials and Technological Processes

Gömze, L.A.^1 ; Gömze, L.N.^2

Department of Ceramics and Silicate Engineering, University of Miskolc, Miskolc-Egyetemváros, H-3515, Hungary^1

IGREX Ltd., Igrici, Rákóczi út 2., H-3459, Hungary^2

关键词: Different densities;    Light metal alloys;    Lightweight composites;    Material structure;    Metallic composites;    Reactive sintering;    Sintered ceramics;    Technical ceramics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/47/1/012033/pdf
DOI  :  10.1088/1757-899X/47/1/012033

来源: IOP

【 摘 要 】

On the basis of several years experiments in development of high performance technical ceramics and in investigation of hetero-modulus and hetero-viscous materials and ceramic matrix composites the authors successfully developed a new family of ceramic reinforced lightweight composites with extreme dynamic strength. To obtain these lightweight composites first the matrix materials were developed from different sort of sintered ceramics with high porosity and after the prepared items were re-sintered using reactive sintering methods or were impregnated with nanoparticles of Si3N4, SiAlON ceramics or light metal alloys having excellent mechanical strength and properties. Where it was necessary the pores and material structures of ceramic matrix materials anchored excellent wetting for a wide range of metal alloys, so it was possible to develop several types of ceramic reinforced hetero-modulus light metal composites with extreme dynamic strength of different density. In this work the authors present the c-Si3N4diamond particles reinforced corundum matrix composite shield plate structures and some of the specially developed low density ceramic foams and high porosity ceramic matrix materials for lightweight metallic composites.