Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Michael Kracker"'
Publikováno v:
Ceramics International. 45:18760-18766
Glass samples were polished and coated with a 10 nm thick silver layer. Both, silver-coated and uncoated samples were thermally treated at 750 °C for 4 h or at 790 °C for 2 h. In both types of samples, the phase Ba0.5Sr0.5Zn2Si2O7 crystallized, whi
Autor:
Christian Patzig, Christian Thieme, Katrin Thieme, Michael Kracker, Thomas Höche, Christian Rüssel
Publikováno v:
Journal of the European Ceramic Society. 39:554-562
Glasses with the base composition 8 BaO·8 SrO·34 ZnO·50 SiO2 were studied with respect to the crystallization of a phase with the composition Ba0.5Sr0.5Zn2Si2O7. Some glasses were doped with gold and/or antimony oxide. All glasses exhibited solely
Publikováno v:
Crystal Growth & Design. 19:1815-1824
The crystallization behavior of BaO–SrO–ZnO–SiO2 glasses containing different concentrations of SnO2 was studied using microscopic techniques as well as thermal analyses. It is shown that SnO2 triggers volume crystallization, but at low nucleat
Autor:
Michael Kracker, Katrin Thieme, Christian Thieme, Thomas Höche, Christian Patzig, Christian Rüssel
Publikováno v:
CrystEngComm. 21:4373-4386
The role of silver as a nucleating agent in BaO/SrO/ZnO/SiO2 glasses is studied with a range of microstructure characterization techniques, such as scanning transmission electron microscopy, ultraviolet-visible spectroscopy, and X-ray diffraction. Fo
Autor:
Michael Kracker, Katrin Thieme, Christian Thieme, Thomas Höche, Christian Rüssel, Lutz Berthold, Christian Patzig
Three glasses from the base system BaO/SrO/ZnO/SiO2 have been synthesized using conventional melt quenching technique and different concentrations of Ag, Sn, Sb, and Ta. After two-step heat treatments, two glasses showed volume crystallization, while
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e5bbd5f755cc6369ec85fe739d4fa45
https://publica.fraunhofer.de/handle/publica/265289
https://publica.fraunhofer.de/handle/publica/265289
Autor:
Michael Kracker, Christian Rüssel, Katrin Thieme, Christian Thieme, Tilman Zscheckel, Thomas Höche
Publikováno v:
Ceramics International. 44:19970-19980
The effect of P2O5 and Ce2O3 on the crystallization behavior of a BaO-SrO-ZnO-SiO2 glass was investigated using thermal analyses, X-ray diffraction, scanning electron microscopy including electron backscatter diffraction as well as laser scanning mic
Publikováno v:
Journal of Materials Science. 53:11204-11215
The recently reported solid solution of Ba1−xSr x Zn2Si2O7 has a similar structure to the high-temperature phase of BaZn2Si2O7 and possesses a coefficient of thermal expansion close to zero or even negative. Without nucleating agents, glasses in th
Publikováno v:
Solid State Sciences. 78:107-115
The effect of different nucleation agents such as ZrO2 and TiO2 was investigated for a first time with respect to their crystallisation behaviour in the glass system BaO-SrO-ZnO-SiO2. In all studied glasses, a Ba1-xSrxZn2Si2O7 (0.1
Autor:
Christian Patzig, Michael Kracker, Thomas Höche, Christian Rüssel, Christian Thieme, Marek Sierka, Andreas Erlebach
Publikováno v:
Ceramics International. 44:2098-2108
A glass from the system BaO-SrO-ZnO-Al 2 O 3 -SiO 2 was synthesized and the crystallization behavior was studied using differential scanning calorimetry, X-ray diffraction, and scanning and transmission electron microscopy. The main phase precipitati
Autor:
Michael Kracker, Christian Rüssel, Christian Patzig, Katrin Thieme, Thomas Höche, Lutz Berthold, Christian Thieme
Publikováno v:
RSC Advances. 8:6267-6277
Glasses in the system BaO/SrO/ZnO/SiO2 containing 0.01 and 0.1 mol% gold were used to study the formation of gold nanoparticles with the aim to use them as nucleation agents. In order to promote gold clustering, the glasses were additionally doped wi