1992 Fiscal Year Final Research Report Summary

Composite Materials for Infrared Heating

Research Project

Project/Area Number	02452247
Research Category	Grant-in-Aid for General Scientific Research (B)
Allocation Type	Single-year Grants
Research Field	金属材料(含表面処理・腐食防食)
Research Institution	The Science University of Tokyo
Principal Investigator	KOHARA Shirou Science Univ. of Tokyo Prof., 基礎工学部材料工学科, 教授 (00013623)
Project Period (FY)	1990 – 1992
Keywords	Infrared radiation / Emissivity / Composites / Carbides / Oxides / 炭化物
Research Abstract	The infrared radiation characteristics of ceramic materials were investigated by measuring the spectral emissivity. Powders of ceramic materials and the mixtures of those ceramic materials were compacted into disc shape specimens and heated at various temperatures for various heating times. The spectral emissivity of the specimens were measured using an infrared spectrophotometer. The spectral emissivity curve of single ceramic powder showed a distinctive type with the low emissivity absorption zone. However, the low emissivity zone was partially compensated by mixing with other ceramic material. Further-more, the spectral emissivity curve changed to the different type, when a complex compound is formed between the constituent materials. Therefore, it is possible to obtain a high efficiency infrared radiator by making ceramic composites.