Chemical factors governing the modification of layered phosphates by low-energy ion bombardment

作者: G. Marletta , S. Pignataro

DOI: 10.1016/S0168-583X(87)80201-X

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摘要: Mixed phosphate having layered structure of Zr matrix with intercalated alkali and transition metal cations have been bombarded Ar + ions at energy 2 keV doses ranging between 10 15 17 ions/cm . The general formulae the studied systems are α-Zr(MPO 4 ) (M=Li, Na, K Cs) a-ZrM(PO (M=Co, Ni, Cu Sr). modifications produced by bombardment were ESCA. According to previous finding on acid phosphates main products condensed polyphosphates oxides. M/Zr atomic ratio residue after ion does not depend upon mass cation. Its modification is interpreted in terms a recently proposed model involving primary binary collision event followed chemical reactions. heat formation formed shown be an important driving force these ion-induced

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