Zobrazeno 1 - 10
of 63
pro vyhledávání: '"H.‐P. Hennig"'
Publikováno v:
Materials Science Forum. :863-868
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::068053da7978207e9e27b7591f345e0d
https://doi.org/10.4028/www.scientific.net/msf.79-82.863
https://doi.org/10.4028/www.scientific.net/msf.79-82.863
Publikováno v:
Crystal Research and Technology. 26:317-320
It could be shown that the preparation of sodium A zeolite is possible by the reaction of quartz and γ-Al2O3 with NaOH-solution. The zeolite formation is dependent on the mechanical preliminary treatment of quartz. Only the partially crystalline par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72b61ca5aa1dba59cd63bc9edd8fe78e
https://doi.org/10.1002/crat.2170260314
https://doi.org/10.1002/crat.2170260314
Publikováno v:
Crystal Research and Technology. 26:1019-1024
The formation of titanite (CaTiSiO5) out of the starting materials quartz and titanate (CaTiO3) is investigated in dependence on the mechanical activation. The formation temperature may be lowered by the use of mechanically disturbed quartz. There ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89ddf9751754ac8b10ff874f47b82967
https://doi.org/10.1002/crat.2170260810
https://doi.org/10.1002/crat.2170260810
Publikováno v:
Zeitschrift f�r anorganische und allgemeine Chemie. 590:213-221
Die mechanische Aktivierung von Hydrargillit in Abhangigkeit vom Beanspruchungsmechanismus (Druck- und Scherbeanspruchung in Schwingmuhlen, Prallbeanspruchung in Desintegratoren) wird untersucht. Der gestorte Hydrargillit zeigt ein verandertes thermi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23df428f441d146049491495da738b69
https://doi.org/10.1002/zaac.19905900121
https://doi.org/10.1002/zaac.19905900121
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 39:1321-1324
Mechanical treatment of hydrargillite Al(OH)3 in a vibrational grinder and in a ball-mill grinder increases the dispersion, the specific surface area, and the unit-cell constants. An x-ray amorphous phase forms. Differences in the nature and in the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cdc73235f0cef1014861ed24dba46797
https://doi.org/10.1007/bf00957829
https://doi.org/10.1007/bf00957829
Publikováno v:
Zeitschrift f�r anorganische und allgemeine Chemie. 484:221-230
Die H2-Thermodesorption von in H2 mechanisch bearbeitetem Quarz weist einen relativ breiten Hauptpeak mit einem Maximum zwischen 760 und 580 K auf. Das Maximum wird mit steigendem Storgrad des Festkorpers zu tieferen Temperaturen verschoben. Die H2-T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63da57b537c464924d8ca89aaba8557e
https://doi.org/10.1002/zaac.19824840122
https://doi.org/10.1002/zaac.19824840122
Publikováno v:
Kristall und Technik. 15:353-358
The gas molecules absorbed during mechanical activation of quartz in a H2 atmosphere are situated as well as the formed E′ centres in the amorphous ranges. The concentrations of the E′ centres are about one order of magnitude less after activatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3af5e8ce915ba22eb8a89ed508282ce1
https://doi.org/10.1002/crat.19800150318
https://doi.org/10.1002/crat.19800150318
Publikováno v:
Crystal Research and Technology. 17:1585-1590
The dissolution of polycrystalline quartz strained by compression and shear or by impact crushing in 1-N NaOH lead to different results. The defects of the impact crushed quartz grains, measured as crystallinity by X-ray methods, are not preferential
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0c3edc0925417d99e9cd1691ac73bcc
https://doi.org/10.1002/crat.2170171223
https://doi.org/10.1002/crat.2170171223
Publikováno v:
Isotopenpraxis Isotopes in Environmental and Health Studies. 14:94-99
Zur Untersuchung von Isotopieeffekten bei mechanisch aktivierten Reaktionen wurde als Modellreaktion die Umsetzung von Graphit mit Wasserstoff zu Methan ausgewāhlt. Aus der gefundenen Isotopenfraktionierung werden Schlusfolgerungen bezūglich des mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d92527395e397d80996aae49c1d7ca2
https://doi.org/10.1080/10256017808622587
https://doi.org/10.1080/10256017808622587
Publikováno v:
Crystal Research and Technology. 17:1259-1266
Infrared investigations demonstrate a chemical interaction of quartz in hydrogen atmosphere during mechanical activation: By means of the SiH stretching band the number of formed SiH-groups is estimated as a function of the period of activation. of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f704437d68752d45ac5774ba38af09b0
https://doi.org/10.1002/crat.2170171015
https://doi.org/10.1002/crat.2170171015