Phase Equilibria in the Ternary System Nd2O3-K2O-P2O5. The partial system NdPO4-KPO3-Nd(PO3)3

• Autorzy: Znamierowska T. , Mizer D.
• Języki publikacji: EN

Abstrakty

EN

In the ternary system Nd2O3-K2O-P2O5 a partial system NdPO4-KPO3-Nd(PO3)3 was investigated by thermoanalytical methods, X-ray powder diffraction and microscopy in reflected light and its phase diagram was proposed. In the system a double metaphosphate KNd(PO3)4 appears. The compound forms in a side system Nd(PO3)3-KPO3. It has been established that the KNd(PO3)4 and NdPO4 form a section, which is a real system only in the subsolidus region. It is found, that a ternary peritectic (tP ~ 885°C) and a ternary eutectic (tE ~ 688°C) occur in the partial system NdPO4-KPO3-Nd(PO3)3.

Słowa kluczowe

EN

phase diagram; DTA; TG; DTG; X-ray; neodymium-potassium phosphates

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2004
• Tom: Vol. 78 / nr 2
• Strony: 195--200
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Znamierowska T.

• Department of Inorganic Chemistry, Faculty of Engineering and Economics, Wroclaw University of Economics, Komandorska 118/120, 53-345 Wrocław, Poland

autor

Mizer D.

• Department of Inorganic Chemistry, Faculty of Engineering and Economics, Wroclaw University of Economics, Komandorska 118/120, 53-345 Wrocław, Poland

Bibliografia

• 1. Wong M-S. and Kreidler E.R., J. Am. Ceram. Soc., 70(6), 396 (1987).
• 2. Parravano N. and Calcagni G., Z. anorg. Chem., 65, 1 (1910).
• 3. Morey G.W., J. Am. Ceram. Soc., 76, 4724 (1954).
• 4. Bergman A.G. and Sanzharova Z.I., Zh. Neorg. Khim., 14, 1 (1969).
• 5. Znamierowska T., Polish J. Chem., 52, 1889(1978).
• 6. Belyaev I. and Sigida N.P., Zh. Neorg. Khim., 3,425 (1958).
• 7. Znamierowska T., Polish J. Chem., 55, 747 (1981).
• 8. Anisimowa N.J., Czudinowa N.N. and Trunow W.K., Neorg. Materiały, 29(1), 105 (1993).