Authors:
V. Drebushchak
,
Yulia KovalevskayaInstitute of Inorganic Chemistry SB RAS Pr. Ak. Lavrentieva, 3 Novosibirsk 630090 Russia

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I. PaukovInstitute of Inorganic Chemistry SB RAS Pr. Ak. Lavrentieva, 3 Novosibirsk 630090 Russia

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N. SurkovInstitute of Geology and Mineralogy SB RAS Pr. Ak. Koptyuga, 3 Novosibirsk 630090 Russia

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Abstract  

Synthetic enstatite MgSiO3 was crystallized from a melt, quenched into water, and then annealed at 873 K. The product is the monoclinic polymorph with the unit cell parameters of a=0.9619(7), b=0.8832(3), c=0.5177(4) nm, β=108.27(5)°. Heat capacity was measured from 6 to 305 K using an adiabatic vacuum calorimeter. Thermodynamic functions for clinoenstatite differ by about 5% from those predicted after a thermodynamic model in the literature, but are very close to those measured for orthorhombic enstatite.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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Geopolymers

Inorganic polymeric new materials

Author:
J. Davidovits