• No results found

High temperature and pressures

Effect of chemical composition on the electrical conductivity of gneiss at high temperatures and pressures

Effect of chemical composition on the electrical conductivity of gneiss at high temperatures and pressures

... lower temperature range is different from the higher tem- perature ...lower temperature range was the impu- rity conduction owing to the low activation enthalpy ...a high activation enthalpy ...and ...

13

Interdiffusion in B2 Type Intermetallic Compound FeAl under High Pressures

Interdiffusion in B2 Type Intermetallic Compound FeAl under High Pressures

... The B2 type intermetallic compound FeAl as notable high temperature practical materials have been investigated as for mechanical, physical and structural properties. 1) It is essen- tial to understand their ...

5

Vapour pressures of some inorganic sulphates at high temperatures

Vapour pressures of some inorganic sulphates at high temperatures

... a high temperature, if only for checking internal consistency, and here a good feeling for the possibility of chemical complications and even kinetic constraints, is obviously ...over high ...

161

Diagnostics of laser induced graphite plasma under various pressures of air, helium and argon

Diagnostics of laser induced graphite plasma under various pressures of air, helium and argon

... Laser induced plasma forms when sufficiently energetic laser pulse breaks down vaporizes the material from target surface. Characteristics of laser induced plasma depends on properties of bother laser and the irradiated ...

6

The structural behaviour of aluminosilicate frameworks at high pressures and temperatures

The structural behaviour of aluminosilicate frameworks at high pressures and temperatures

... Using electron diffraction and electron microscopic studies, Ghose et al. (1988), Hatch and Ghose (1989) and Van Tendeloo et al. (1989), presented a dynamical model for the phase transition, which is initially driven by ...

255

Ceramic Foam Synthesis and Its Modification for Use at High Temperature

Ceramic Foam Synthesis and Its Modification for Use at High Temperature

... The proper ties of the ceramic foam produced were characterised according to ASTM C 271-94 and the porosity was characterised using the Archimedes method. The morphological study was perfor med using a scanning electron ...

9

High Temperature XRD of Phase Transition in Piezoelectric PbNb2O6 across its Curie temperature

High Temperature XRD of Phase Transition in Piezoelectric PbNb2O6 across its Curie temperature

... with high temperature (HT) x-ray diffraction (XRD) the structural changes during ferroelectric to paraelectric phase transition on heating across the Curie temperature and trace the cooling path ...

7

Adsorption Enthalpy Calculations of Hydrogen Adsorption at Ambient Temperature and Pressures Exceeding 300 bar

Adsorption Enthalpy Calculations of Hydrogen Adsorption at Ambient Temperature and Pressures Exceeding 300 bar

... ambient temperature and high-pressure for three benchmark ma- terials to calculate the adsorption ...to high-pressure data, and that a single isotherm can be used if an appropriate adsorption model ...

9

Thermodynamic properties of standard seawater: extensions to high temperatures and pressures

Thermodynamic properties of standard seawater: extensions to high temperatures and pressures

... After the publication and international agreement on EOS- 80, the highly accurate IAPWS 1995 Formulation for the Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use, which is in the form ...

12

Cornell Notes- Ch. 10 & 12 SC.doc

Cornell Notes- Ch. 10 & 12 SC.doc

...  At constant volume and temperature, the total pressure exerted by a mixture of gases is equal to the sum of the partial pressures.. P total = _____________________________[r] ...

7

chapter14_section04.pps

chapter14_section04.pps

... that, at constant volume and temperature, the total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of?. the component gases...[r] ...

31

A friction test between steel and a brittle material at high contact pressures and high sliding velocities

A friction test between steel and a brittle material at high contact pressures and high sliding velocities

... A specific apparatus is required to simultaneously ob- tain high pressures and high velocities. Several techniques have been developed to measure friction coefficients under these conditions: ...

5

Effect of temperature induced excess porewater pressures on the shaft bearing capacity of geothermal piles

Effect of temperature induced excess porewater pressures on the shaft bearing capacity of geothermal piles

... in temperature in clays of low permeability typically induce excess porewater ...parameters: temperature of the fluid, permeability and soil ...porewater pressures can potentially reduce the ...

8

Ontogeny of baroreflex control in the American alligator Alligator
mississippiensis

Ontogeny of baroreflex control in the American alligator Alligator mississippiensis

... of incubation and continued to rise in hatchlings (Fig.·1), a pattern of pressure change that is consistent with that of other developing vertebrates (Blanco et al., 1988; Segar et al., 1992; Tazawa and Hou, 1997). By ...

8

Hydrogen bonding at high pressures

Hydrogen bonding at high pressures

... The v ariational approach treats the H bond as a weak chemi cal bond vfi thin the composite molecule AfIB, in the sense that the H bond energy can be obtained as the differences between [r] ...

160

Studying weak inter­actions in crystals at high pressures: when hardware matters

Studying weak inter­actions in crystals at high pressures: when hardware matters

... tance for studying the mechanical response of the crystal to variations in PT conditions, will not be accessible. The new- generation instruments are expected to improve the quality of the diffraction data and the ...

21

Design and Analysis of Rotary Directional Control Valve

Design and Analysis of Rotary Directional Control Valve

... At some point, this thermal stress can exceed the strength of the material, failing Von-Mises criteria, also with tolerance errors leads to dimension deformity. Thermal Stress failure starts from dimension deviation in ...

7

Low Friction Sliding Planes of Greased PTFE for High Contact Pressures

Low Friction Sliding Planes of Greased PTFE for High Contact Pressures

... In this paper, a highly effective sliding plane of greased PTFE is presented. The sliding plane was developed within a new experimental test-setup to investigate the punching shear behavior of reinforced concrete slabs ...

12

THE EFFECT OF HIGH PERFUSION PRESSURES ON THE GRANULATION OF JUXTAGLOMERULAR CELLS IN AN ISOLATED KIDNEY

THE EFFECT OF HIGH PERFUSION PRESSURES ON THE GRANULATION OF JUXTAGLOMERULAR CELLS IN AN ISOLATED KIDNEY

... This introduction of hemolyzed blood provided more hemolysis than was seen in any of the experiments with perfusions at high pressure and still no significant degranulation occurred in t[r] ...

7

Elasticity of Solids at High Pressures and Temperatures : Theory, Measurement, and Geophysical Application

Elasticity of Solids at High Pressures and Temperatures : Theory, Measurement, and Geophysical Application

... mations made in the finite strain theory are independent from those made in the lattice dynamics theory, with the result that strain dependence may be described in terms of any frame-ind[r] ...

276

Show all 10000 documents...

Related subjects