Investigation of the structural_phase state of ultrafine plasmochemical ZrO2 (Y) powders

20th International Conference for Students and Young Scientists: Modern Techniques and Technologies

工业技术;材料科学

Ghyngazov, S.A.^1 ; Vasiliev, I.P.^1 ; Frangulyan, T.S.^1 ; Khaidukova, V.M.^1 ; Mylnikova, T.S.^1

National Research, Tomsk Polytechnic University, Tomsk

634050, Russia^1

关键词: Bound waters;    Nonequilibrium state;    Phase state;    Plasmochemical synthesis;    Structural-phase state;    Ultra fine powder;    Ultrafine;    X-ray phase analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/66/1/012021/pdf
DOI  :  10.1088/1757-899X/66/1/012021

来源: IOP

【 摘 要 】

The methods of X-ray phase analysis, thermogravimetry and differential scanning calorimetry were used to study the structural and phase state of ultrafine powders (UFP) of ZrO2(Y) obtained by plasmochemical synthesis. It is shown that these UFPs are in a highly nonequilibrium state due to the presence of adsorbates and bound water, and the distribution of the stabilizing impurity in the volume of the particles is nonuniform.