Crystallization of (FeO, Fe₂O₃)-CaO-SiO₂ Glasses and Magnetic Properties of Their Crystallized Products

Crystallization kinetics and magnetic properties of iron oxide contained 25Li2O–8MnO2–20CaO–2P2O5–45SiO2 glasses

“…19 Very small saturation magnetization is obtained due to the modest content of the magnetic phase in the F2 and F3 LMFCPS glass ceramics. 15 The coercive forces of the F2 and F3 LMFCPS glass ceramics measured at 4 K were 338 and 70 Oe, respectively. The iron-containing glass ceramics reveal the ferromagnetic behavior at 4 K. Increasing the measuring temperature to 300 K, the coercive force of the F2 LMFCPS glass ceramic decreases to a value smaller than 5 Oe.…”

“…In the XRD patterns of the crystallized F2 LMFCPS glasses, (Li, Mn)ferrite, ␤-wollastonite, and Li 2 SiO 3 are obtained. Both the Fe 2+ and Fe 3+ are able to enter the wollastonite lattice, 15 with the ␤-wollastonite matrix composition essentially CaO·SiO 2 . The composition of the glassy phase of the glass ceramic matrix varies with crystallization temperature.…”

“…A hysteretic heating from the implanted ferromagnetic glass ceramic raised the temperature sufficiently to cause significant tumor growth delay in their investigation. Although the precipitation of magnetic particles from glasses has also been studied by several investigators, [13][14][15] the devitrification behavior and magnetic properties of LMFCPS glasses have not been elaborated in detail.…”

Controlled Local Hyperthermia and Magnetic Hyperthermia of Surface (Skin) Cancer Diseases

“…Ceramic [29][30][31] in destruction of cancer cells implanted in rabbit femoral bone, when it was introduced in the pin-form into brain channel and [36] was placed in alternate magnetic field [33]. But such glassceramic pins can't be used clinically, since cancer cells can be scattered around.…”

Concept and Development of Vector Ceramics for Bio-interface Engineering

“…Although various attempts to develop ferromagnetic glass ceramics, such as magnetite (Fe 3 O 4 ) containing CaOSiO 2 B 2 O 3 P 2 O 5 , 34) and aFe containing CaOSiO 2 35) have been carried out, it was difficult to produce ferromagnetic ceramic microspheres with chemical durability, a thermal conversion efficiency, and diameter for hyperthermic embolization ther apy. One of the prime candidates is crystalline magnetite microspheres synthesized by the postheating of bFeOOH particles prepared from SiO 2 microspheres and an Fe 3 O 4 com ponent containing a hydrofluoric solution.…”