METHOD OF THERMAL TEST OF MATERIALS Russian patent published in 1994 - IPC

FIELD: materials testing. SUBSTANCE: heat is fed from thermite bricks with the following proportion of their components, % in mass: B₄C 15-50, Ti 38-79, Zr 6-12 or SiC 10-50, Ti 40-82, Zr 8-12. Radiating surface is combined from bricks so that it follows geometry of sample and is disposed with a clearance of 1 to 2 mm. Maximum heat flow and wave length corresponding to the maximum heat radiation are adjusted by varying concentration of one of brick components within the area of stable burning. Regular heat irradiation is obtained due to simultaneous ignition of bricks in points spaced from each other to a distance which is equal or less than brick thickness. This method may be use for determining thermophysical characteristics of materials under different operating conditions and also for estimating the units made of these materials under action of short-time intensive radiant flows. EFFECT: improved reliability of test results. 7 dwg