| 1. |
- Dubrovinskaia, NA, et al.
(författare)
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Experimental study of thermal expansion and phase transformations in iron-rich Fe-Al alloys
- 1999
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Ingår i: CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY. - : PERGAMON-ELSEVIER SCIENCE LTD. - 0364-5916. ; 23:1, s. 69-84
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- A series of Fe-Al alloys with various contents of aluminium (from 1 to 10 weight percent) was investigated by X-ray diffraction. The unit cell parameters and molar volumes of these alloys were measured at ambient conditions. The thermal expansions of two
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| 2. |
- Dubrovinskaia, NA, et al.
(författare)
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High-pressure study of titanium carbide
- 1999
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Ingår i: JOURNAL OF ALLOYS AND COMPOUNDS. - : ELSEVIER SCIENCE SA. - 0925-8388. ; 289:1-2, s. 24-27
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- We studied titanium carbide (TiC) at pressures up to 38(1) GPa using in situ powder X-ray diffraction and observed a phase transformation from the NaCl-type cubic structure (B1) to a rhombohedral structure at a pressure above 18 GPa at 300 K under a quasi
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| 3. |
- Dubrovinskaia, NA, et al.
(författare)
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Thermal expansion and compressibility of Co6W6C
- 1999
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Ingår i: JOURNAL OF ALLOYS AND COMPOUNDS. - : ELSEVIER SCIENCE SA. - 0925-8388. ; 285:1-2, s. 242-245
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Using powder X-ray diffraction, the pressure-volume (PV) data on Co6W6C were determined at ambient temperature and pressures up to 32 GPa with the following results: isothermal bulk modulus K-300,K-1, (GPa): 462(11); pressure derivative K'(300,1), (fixed)
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| 4. |
- Dubrovinsky, LS, et al.
(författare)
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A thermal characteristic of melting in laser heating at high pressure
- 1999
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Ingår i: HIGH TEMPERATURES-HIGH PRESSURES. - : PION LTD. - 0018-1544. ; 31:4, s. 385-391
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The thermal behaviour of a thin metallic foil heated by a Nd:YAG laser has been simulated. The time-temperature and laser power-temperature plots show a sharp change in slope and on melting the smooth variation of temperature becomes more erratic, turning
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| 5. |
- Dubrovinsky, LS, et al.
(författare)
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Emissivity measurements on some metals and oxides using multiwavelength spectral radiometry
- 1999
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Ingår i: HIGH TEMPERATURES-HIGH PRESSURES. - : PION LTD. - 0018-1544. ; 31:4, s. 393-399
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The emissivities of tungsten (W), platinum (Pt), iron (Fe), corundum (Al2O3), zirconia (ZrO2), and sodium metasilicate (Na2SiO3) have been measured by a new approach. The metals platinum and tungsten were heated electrically to the melting temperature and
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| 6. |
- Dubrovinsky, LS, et al.
(författare)
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In-situ x-ray study of the thermal expansion of iron at multimegabar pressure
- 1999
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Ingår i: HIGH TEMPERATURES-HIGH PRESSURES. - : PION LTD. - 0018-1544. ; 31:5, s. 553-559
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The density of epsilon-iron was determined as a function of pressure, p, and temperature, T, at pressures up to 240 GPa and at temperatures ranging up to 1285 K by means of an externally electrically heated diamond anvil cell and in-situ x-ray powder diff
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| 7. |
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| 8. |
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| 9. |
- Saxena, SK, et al.
(författare)
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Equation of state of MgSiO3 with the perovskite structure based on experimental measurement
- 1999
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Ingår i: AMERICAN MINERALOGIST. - : MINERALOGICAL SOC AMER. - 0003-004X. ; 84:3, s. 226-232
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- We studied MgSiO3 with the perovskite structure heated to temperatures up to 1500 K at pressures between 36 and 110 GPa with in-situ X-ray diffraction. The new pressure-volume-temperature (P-V-T) data were combined with literature data. to provide thermal
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| 10. |
- Swamy, V, et al.
(författare)
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High-temperature powder x-ray diffraction of yttria to melting point
- 1999
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Ingår i: JOURNAL OF MATERIALS RESEARCH. - : MATERIALS RESEARCH SOCIETY. - 0884-2914. ; 14:2, s. 456-459
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Powder x-ray diffraction data of yttria (Y2O3) were obtained from room temperature to melting point with the thin wire resistance heating technique. A solid-state phase transition was observed at 2512 +/- 25 K and melting of the high-temperature phase at
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