Estimate of the “true” magnetic transition temperatures for the ICTA reference materials GM761

Blaine, Roger L.; Fair, P.G.

doi:10.1016/0040-6031(83)80103-8

Cited by 13 publications

(4 citation statements)

References 5 publications

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“…The samples were subsequently heated linearly with a ramp of 1 °C min −1 to 100 °C (scan rate was very low to approach the equilibrium). Experiments were also carried out at different scanning rates so as to understand the kinetics of the crystallization/melting process 44–47. After runs were completed the weight of the sample was checked and, if the weight agreed with initial weight within 5%, the run was accepted as valid.…”

Section: Methodsmentioning

confidence: 99%

Mechanism of solvent entrapment within the network scaffolding in organogels: thermodynamic and kinetic investigations

Markovic

Ginic‐Markovic

Dutta

2003

Polymer International

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A detailed investigation on the thermodynamic behaviour of the physical and chemical organogels, using differential scanning calorimetry (DSC) and modulated thermogravimetric analysis (MTGA), is presented. Aluminium soap of fatty acid was used as the physical gelator and in situ crosslinking of siloxane copolymer was used for chemical gelation. The effects of the type and concentration of the gelators and the corresponding mesh‐size distribution of the gel network scaffolding on the trapped‐solvent crystallization, melting and evaporation mechanism, and kinetics are examined. It appears that the kinetics of crystallization of the trapped‐solvent are significantly affected by the quality of the gel network scaffolding and can be treated successfully by the Avrami equation of crystallization. From the melting behaviour of the entrapped‐solvent crystallites, quantitative information about the number of solvent molecules bound per molecule of the gelator has been extracted. The effect of gelation network structure on the kinetics of evaporation of the solvent from the gel network scaffolding has been evaluated. DSC appears to be the reliable technique to evaluate the population distribution of solvent molecules trapped in the gel network scaffolding. Copyright © 2003 Society of Chemical Industry

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Section: Methodsmentioning

confidence: 99%

Mechanism of solvent entrapment within the network scaffolding in organogels: thermodynamic and kinetic investigations

Markovic

Ginic‐Markovic

Dutta

2003

Polymer International

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“…A new instrument, which could be used to detect Curie point temperatures, can also be coupled to a thermodilatometer (174,175). New estimates were determined for the "true" magnetic transition temperatures of the ICTA reference materials, using a six-point calibration method traceable to the standards of the International Practical Temperature Scale of 1968 (40).…”

Section: Miscellaneous Methodsmentioning

confidence: 99%

Thermal analysis

Wendlandt¹

1984

Anal. Chem.

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“…In order to eliminate any possible contributions from other FM secondary phase impurities, 23 we separately synthesized two FM phases that most commonly occur as impurities in the layered Aurivillius materials, BFCO-0.5 and CoFe 2 O 4 . A magnetic thermogravimetric analysis (MTGA) technique 24 was used to determine T CM of the materials. The measured T CM for SBFCT was 440.8 K, which is quite close to the above M-T measurement ($436 K).…”

mentioning

confidence: 99%