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搜索结果: 1-6 共查到凹凸棒石 magnetic properties相关记录6条 . 查询时间(0.152 秒)
The occurrence of hausmannite with an apparent Curie temperature close to 750 K, instead of 41.8 K was recently described from hydrothermally altered manganese ore from the Kalahari manganese field, S...
Magnetic properties of exsolved samples of the (Fe304t(MgAlz04),_x solid solution weremeasured over the temperature range 4-923 K and were correlated with microstructuresobserved by transmission elect...
Curietemperatures (Td ofthe (Fe304)x(MgA1204)1-xsolid solution have been deter-minedfrom measurementsofmagneticsusceptibility (x)vs.temperature. Thetrend in Te vs.composition extrapolates to 0Katx =0...
57Fe M鰏sbauer spectra of two synthetic samples of ferrihydrite, recorded at 4.2 K in applied fields of up to 9 T, have been analysed by a mean-field model. The samples exhibit two and six X-ray diffra...
A series of synthetic goethites containing varying amounts of Si and P dopants were characterized by X-ray powder diffraction, electron diffraction, microbeam electron diffraction, and M鰏sbauer spectr...
A sample of ferripyrophyllite, a mineral with ideal composition Fe2Si4O10(OH)2, was analyzed by Mössbauer spectroscopy, magnetization and magnetic susceptibility measurements. The iron is entirel...

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