Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Rüdiger Dieckmann"'
Publikováno v:
Journal of Non-Crystalline Solids. 378:168-176
Sodium tracer diffusion coefficients, D Na ⁎ , have been measured for sodium borosilicate glasses of the type (Na 2 O) 0.17 (B 2 O 3 ) x (SiO 2 ) 0.83−x as a function of temperature and the composition parameter x. At constant temperature, the tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf3bbc6d4f3ecf3f6dd3a2c1380c9c37
https://doi.org/10.1016/j.jnoncrysol.2013.06.012
https://doi.org/10.1016/j.jnoncrysol.2013.06.012
Publikováno v:
Bulletin of the Korean Chemical Society. 34:629-632
Many properties of inorganic compounds are sensitive to changes in the point-defect concentrations. In minerals, such changes are influenced by temperature, pressure, and chemical impurities. Olivines form an important class of minerals and are magne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b68e1d63c9650d8890672bd018a8091
https://doi.org/10.5012/bkcs.2013.34.2.629
https://doi.org/10.5012/bkcs.2013.34.2.629
Autor:
Q. Tang, Rüdiger Dieckmann
Publikováno v:
Solid State Ionics. 228:70-79
The diffusion of manganese in manganese silicate, Mn2SiO4, in equilibrium with MnSiO3 was experimentally studied as a function of crystallographic orientation, oxygen activity and temperature using high purity synthetic single crystals of manganese s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43e944133aebb9ba29d5394352599393
https://doi.org/10.1016/j.ssi.2012.09.008
https://doi.org/10.1016/j.ssi.2012.09.008
Autor:
Qiuju Zheng, Rüdiger Dieckmann, Xinwei Wu, Jeremy D. Moskowitz, John C. Mauro, Marcel Potuzak
Publikováno v:
Journal of Non-Crystalline Solids. 358:1430-1437
Sodium tracer diffusion coefficients, D*Na, have been measured using the radioactive isotope Na-22 in sodium boroaluminosilicate (NBAS) glasses containing either a small amount of As2O3 or Fe2O3. The chemical compositions of the first type of glasses
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa29cf986fdc8ce051a1604514ef406d
https://doi.org/10.1016/j.jnoncrysol.2012.03.004
https://doi.org/10.1016/j.jnoncrysol.2012.03.004
Autor:
Q. Tang, Rüdiger Dieckmann
Publikováno v:
Solid State Ionics. 212:66-76
To contribute to a better understanding of point defects and defect-related transport properties in cobalt orthosilicate, Co 2 SiO 4 , the orientation-dependent diffusion of cobalt in high purity, synthetic single crystals of Co 2 SiO 4 being in ther
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d8a56df7bd2baf54d0498c05e18f704
https://doi.org/10.1016/j.ssi.2012.02.016
https://doi.org/10.1016/j.ssi.2012.02.016
Publikováno v:
Journal of Non-Crystalline Solids. 357:3661-3669
Sodium tracer diffusion coefficients, D⁎Na, have been measured in sodium borosilicate glasses of the type (Na2O)0.2(B2O3)y(SiO2)0.8−y as a function of temperature and the composition parameter y. At constant temperature, the tracer diffusion coef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39f9e9979dd7407cc7dcabd46133f99c
https://doi.org/10.1016/j.jnoncrysol.2011.06.026
https://doi.org/10.1016/j.jnoncrysol.2011.06.026
Autor:
Xinwei Wu, Rüdiger Dieckmann
Publikováno v:
Journal of Non-Crystalline Solids. 357:3797-3802
Sodium tracer diffusion coefficients, D N a * , have been measured using the radioactive isotope Na-22 in a commercial, ion exchangeable sodium aluminosilicate glass at different temperatures between about 200 and 400 °C. The activation enthalpy der
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7839395f5b8e1f17662827501760bef6
https://doi.org/10.1016/j.jnoncrysol.2011.07.038
https://doi.org/10.1016/j.jnoncrysol.2011.07.038
Publikováno v:
Solid State Ionics. 194:17-32
The variation of the oxygen content, xO, of synthetic fayalite (Fe2SiO4) single crystals was investigated thermogravimetrically at 1130 °C as a function of the oxygen activity, aO2 (= PO2/PO2° ≈ fO2/fO2° with PO2° ≈ fO2° = 1 bar ≈ 1 atm).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c91e178eed3af9e9704fa54bed89e2c9
https://doi.org/10.1016/j.ssi.2011.05.001
https://doi.org/10.1016/j.ssi.2011.05.001
Autor:
Rüdiger Dieckmann, Jörg Töpfer
Publikováno v:
Solid State Ionics. 181:479-488
Changes in the oxygen content of Mn 2 SiO 4 + δ in equilibrium with MnSiO 3 were measured thermogravimetrically at 1000, 1100 and 1200 °C at a total pressure of about 0.5 atm as a function of the oxygen activity, a O 2 , and were used to determine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b6a49056a9167c83c4c985dee7e87a9
https://doi.org/10.1016/j.ssi.2010.02.004
https://doi.org/10.1016/j.ssi.2010.02.004
Publikováno v:
Solid State Sciences. 10:735-745
To investigate whether a change in the valence state of tracer ions affects their diffusivity or not, the iron tracer diffusion in Al2O3-doped MgO, in which 0.5% of the cations were Al3+ ions, has been studied experimentally. Samples were prepared fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab54f77231a7060978db25a348e88b16
https://doi.org/10.1016/j.solidstatesciences.2007.03.021
https://doi.org/10.1016/j.solidstatesciences.2007.03.021