The effect of temperature on the product of bulk modulus and volume thermal expansion coefficient, and its application to the thermal expansion of MgO and other minerals

Fang, Mingxing; Pin, Ye; Yan, Zhijie

doi:10.1002/pssb.200302047

Cited by 3 publications

(3 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The second most intense MgO reflection ((220), relative intensity ≈50%) overlaps with the (103) reflection of Mg. Accordingly, its intensity cannot be followed independently 200) reflection using the thermal expansion coefficient from [31]; dashed line: calculated d-spacing value of the MgB 2 (101) reflection using the thermal expansion coefficient from [32].…”

Section: Mgo Formationmentioning

confidence: 99%

See 1 more Smart Citation

In situinvestigations of phase transformations in Fe-sheathed MgB₂wires

Grivel

Pinholt

Andersen

et al. 2005

Supercond. Sci. Technol.

View full text Add to dashboard Cite

The phase evolution inside Fe-sheathed wires containing precursor powders consisting of a mixture of Mg and B has been studied in situ by means of x-ray diffraction with hard synchrotron radiation (90 keV). Mg was found to disappear progressively during the heating stage. At 500• C, the intensity of the Mg diffraction lines is reduced by about 20%. This effect is partly attributable to MgO formation. The MgB 2 phase was detected from 575• C. Fe 2 B was forming at the interface between the sheath and the ceramic core at sintering temperatures of 780 and 700• C, but not at 650• C. The formation rate of this phase is strongly dependent on the heat treatment temperature. Its presence can be readily detected as soon as the average interface reaction thickness exceeds 150-200 nm.

show abstract

Section: Mgo Formationmentioning

confidence: 99%

“…Dotted line: calculated d-spacing value of the MgO(200) reflection using the thermal expansion coefficient from [31]; dashed line: calculated d-spacing value of the MgB 2 (101) reflection using the thermal expansion coefficient from [32].…”

Section: Mgo Formationmentioning

confidence: 99%

In situinvestigations of phase transformations in Fe-sheathed MgB₂wires

Grivel

Pinholt

Andersen

et al. 2005

Supercond. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Several physical properties and crystal anharmonicities are directly related to second and third order elastic constants. In present decade, considerable interest has been taken in investigation of [1][2][3][4][5]. Here, to compute the second, third and fourth order elastic constants at any temperature; a method have been developed starting from nearest neighbour distance and hardness parameter assuming Coulomb and Börn Mayer potentials for Manganese Compounds.…”

Section: Introductionmentioning

confidence: 99%

Anharmonic Properties of MnO, MnSe and MnS

Kailash

2008

AIP Conference Proceedings

View full text Add to dashboard Cite

Abstract. Elastic properties of a divalent compound are important because they relate to the various fundamental solid state phenomena such as inter -atomic potentials, equation of state and phonon spectra. If the values of second order elastic constants and density at a particular temperature are known for any substance, one may obtain ultrasonic velocities for longitudinal and shear waves which give an important information about its anharmonic properties. An effort has been made for obtaining higher order elastic constants starting from basic parameters viz. nearest neighbor distance, hardness parameter and using Coulomb and Börn-Mayer potentials. The higher order elastic constants, first order pressure derivatives of second and third order elastic constants, second order pressure derivatives of second order elastic constants and partial contractions for Manganese Compounds are evaluated from 100K to up their melting point using this theory.

show abstract