Author/Authors :
Sidorov، نويسنده , , N.S. and Palnichenko، نويسنده , , A.V. and Avdonin، نويسنده , , V.V. and Shakhrai، نويسنده , , D.V. and Rybchenko، نويسنده , , O.G. and Khasanov، نويسنده , , S.S. and Sakharov، نويسنده , , M.K.، نويسنده ,
Abstract :
Shock-wave pressure treatment up to 65 GPa has been applied to samples representing powdered mixtures of calcium and calcium phosphate in 1:1 volume ratio. Magnetometric measurements have revealed superconductivity of the samples at 50 K. By means of X-ray powder diffraction and magnetometric measurements, it has been found that superconductivity observed in the samples corresponds to instability at ambient pressure and room temperature of the phase/s formed in the samples during their shock-wave pressure treatment.