A. Ratle et al., A SIMPLE METHOD FOR EVALUATING ELASTIC-MODULUS OF REFRACTORIES AT HIGH-TEMPERATURES, Canadian ceramics quarterly, 65(3), 1996, pp. 202-204
A new experimental procedure is presented for evaluating the elastic m
odulus of refractories at high temperatures. The method is based on fl
exural resonance after excitation by an impacting ball. A great experi
mental simplification is introduced by using standard three point bend
ing supports instead of a wire suspended sample, and an acoustic micro
phone as a non-contacting transducer. It is shown that the distance be
tween support points has a negligible effect on the experimental resul
ts.