Principles of Thermal Expansion in Feldspars | Request PDF

Following the recent thermal expansion work of Hovis et al. (2008) on AlSi(3) feldspars, we have investigated the thermal expansion of plagioclase, Ba-K, and Ca-K feldspar crystalline solutions.

Principles of Thermal Expansion in Feldspars - NASA/ADS

1-5-2010· Following the recent thermal expansion work of Hovis et al. (1) on AlSi3 feldspars, we have investigated the thermal expansion of plagioclase, Ba-K, and Ca-K feldspar crystalline solutions. X-ray powder diffraction data were collected between room temperature and 925 °C on six natural plagioclase specimens ranging in composition from anorthite to oligoclase, the K-exchanged equivalents of ...

Principles of thermal expansion in the feldspar system ...

Request PDF | Principles of thermal expansion in the feldspar system | Following the recent thermal expansion work of Hovis et al. (2008) on AlSi(3) feldspars, we have investigated the thermal ...

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Principles of Thermal Expansion in Feldspars

Principles of Thermal Expansion in Feldspars Guy Hovis, Aaron Medford, Maricate Conlon, Allison Tether, and Anthony Romanoski Lafayette College, Geology and Environmental Geosciences, Easton, Pennsylvania, United States ([email protected]) Following the recent thermal expansion work of Hovis et al. (1) on AlSi 3 feldspars, we have ...

Principles of thermal expansion in the feldspar system ...

Following the recent thermal expansion work of Hovis et al. (2008) on AlSi 3 feldspars, we have investigated the thermal expansion of plagioclase, Ba-K, and Ca-K feldspar crystalline solutions. X-ray powder diffraction data were collected between room temperature and 925 °C on six natural plagioclase specimens ranging in composition from anorthite to oligoclase (and as well on their K ...

Principles of thermal expansion in the feldspar system

Principles of thermal expansion in the feldspar system Guy L. Hovis,* AA ron Medford, MA ric A te con L on, ALL ison tet H er, A nd Ant H ony ro MA noski Department of Geology and Environmental Geosciences, Lafayette College, Easton, Pennsylvania 18042, U.S.A. Abstr A ct Following the recent thermal expansion work of Hovis et al. (2008) on AlSi 3

Principles of thermal expansion in the feldspar ... - …

Not Available adshelp[at]cfa.harvard.edu The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A

Microcracking of granite feldspar during thermal ...

the thermal expansion coefficient of each mineral will define the thermal decay and anisotropies within each crystal. At temperatures below 400° C, the plagioclase has a higher thermal expansion coefficient than K-feldspar (Skinner, 1966). Propagation of microcracks (Kranz, 1983; Åkesson et …

Feldspar - an overview | ScienceDirect Topics

S.J. Dhoble, in Principles and Applications of Organic Light Emitting Diodes (OLEDs), 2017 1.3.2.5 Luminescence in Electron–Hole Centers In the crystalline structure of certain types of matter such as quartz, feldspar , and aluminum oxide, the electrons trapped between the valence band and conduction band can also cause luminescence.

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Feldspars have high KNaO, that means they have high thermal expansions. That is why high-feldspar glazes often craze. Beryl Feldspar Mica. Augite Feldspar. Aquamarine On Feldspar. Feldspar melts by itself to be a glaze, but crazes badly. Pure MinSpar feldspar fired at cone 6 on Plainsman M370 porcelain. Although it is melting, the crazing is ...

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(PDF) Microcracking of granite feldspar during thermal ...

Granite is one of the most widely used building stone and is a main component in many heritage buildings for its austere appearance and its availability as a stone of the Earth´s crust. When exposed at the Earth’s surface, thermal changes are

Thermal Expansion of Feldspar Glasses, Journal of the ...

Thermal Expansion of Feldspar Glasses P . J . VERGANO, D. C. HILL, and D. R . U H L M A N N HE change in melting temperature with pressure, dTM/dP, can be expressed by the Clapeyron relation: Table I. Linear Thermal Expansion Coefficient of Feldspar Glasses Na/Na Material molar ratio dTx = dP AS where AV is volume change on melting and A S is the entropy change on melting. In preparation for a ...

Thermal Expansion of Feldspar Glasses, Journal of the ...

Thermal Expansion of Feldspar Glasses P . J . VERGANO, D. C. HILL, and D. R . U H L M A N N HE change in melting temperature with pressure, dTM/dP, can be expressed by the Clapeyron relation: Table I. Linear Thermal Expansion Coefficient of Feldspar Glasses Na/Na Material molar ratio dTx = dP AS where AV is volume change on melting and A S is the entropy change on melting. In preparation for a ...

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