Comments on Note by Karl A. Sense

Phase Transformation of Zirconium Oxide. Influence of Pressure and Temperature.

“…Sense (6) recently reported that a dense zirconia body, prepared by a low-temperature, hot-pressing operation followed by sintering above 2250°C ., retained its integrity on quenching, and proposed a skip transformation such as has been observed for plutonium (4). Yavorsky (8) has proposed the alternative that the impurities in that dense body (which appeared black with a semimetallic luster) have increased the thermal conductivity to permit rapid traversing of the transformation zone.…”