Magnetic and structural properties of CaO-SiO2-P2O5-Na2O-Fe2O3 glass ceramics
- 1. Department of Physics, Indian Institute of Technology, Guwahati 781039 (India)
- 2. Glass and Glass Ceramic Technology Section, TP and PED, Bhabha Atomic Research Centre, Mumbai 400085 (India)
Description
Magnetic properties of glass ceramics derived from glasses with composition 41CaO.(52-x)SiO2.4P2O5.xFe2O3.3Na2O (2≤x≤10 mol% iron oxide (Fe2O3)) are reported. Structural investigation revealed the presence of nanocrystalline magnetite phase in the heat-treated samples containing x≥2 mol% Fe2O3. Magnetic hysteresis cycles of the glass-ceramic samples were obtained with a maximum applied field of ±20 kOe as well as a low field of ±500 Oe, in order to evaluate the potential of these glass ceramics for hyperthermia treatment of cancer. Samples with x>2 mol% of iron oxide exhibited magnetic behavior similar to soft magnetic materials with low coercivity. The evolution of magnetic properties in these samples as a function of iron oxide molar concentration is correlated with the amount and crystallite size of magnetite phase present in them
Availability note (English)
Available from http://dx.doi.org/10.1016/j.jmmm.2007.11.007Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2007.11.007;
- PII
- S0304-8853(07)00974-2;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 320
- Journal Issue
- 7
- Journal Page Range
- p. 1352-1356
- ISSN
- 0304-8853
- CODEN
- JMMMDC
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39065676
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CALCIUM OXIDES; CERAMICS; COERCIVE FORCE; GLASS; HEAT TREATMENTS; HYPERTHERMIA; HYSTERESIS; IRON OXIDES; MAGNETIC PROPERTIES; MAGNETITE; NANOSTRUCTURES; NEOPLASMS; PHOSPHORUS OXIDES; SILICA; SILICON OXIDES; SODIUM OXIDES
- Descriptors DEC
- ALKALI METAL COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; BODY TEMPERATURE; CALCIUM COMPOUNDS; CHALCOGENIDES; DISEASES; IRON COMPOUNDS; IRON ORES; MINERALS; ORES; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; PHOSPHORUS COMPOUNDS; PHYSICAL PROPERTIES; SILICON COMPOUNDS; SODIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.