Zobrazeno 1 - 10
of 29
pro vyhledávání: '"J. B. H. Jansen"'
Publikováno v:
Clay Minerals. 31:263-277
Thermoporometry (TPM) was applied to hydrotalcite precipitates prepared with carbonate, bicarboxylic acids and chloride. It was used to measure the formation of an ice body between the hydrotalcite particles. Before TPM could be applied, the dried hy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6ecd16acc4f457f224583ecde54ea21
https://doi.org/10.1180/claymin.1996.031.2.12
https://doi.org/10.1180/claymin.1996.031.2.12
Publikováno v:
American Journal of Science. 295:1179-1219
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c5bb43768eff1273781eae73fae69bd
https://doi.org/10.2475/ajs.295.10.1179
https://doi.org/10.2475/ajs.295.10.1179
Publikováno v:
Journal of Non-Crystalline Solids. 181:151-156
The quadrupole coupling constants (QCC) and asymmetry parameters (η) of the fourfold and sixfold coordinated Al sites in basic aluminum sulfate have been determined by using the field dependent second order quadrupole shift, 2-dimensional nutation n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba8c7730b21867756fad9273066f7ba2
https://doi.org/10.1016/0022-3093(94)00492-7
https://doi.org/10.1016/0022-3093(94)00492-7
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 114:361-370
Aged porous 13 wt% silica hydrogel beads were characterized by measuring the freezing point depression of water in silica gel pores, which provides information about the ice crystal radius (Rn), the ice-pore volume (Vn), the pore shape (F), and the i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61338606539dc3d2994b451560f3c3ca
https://doi.org/10.1002/recl.19951140804
https://doi.org/10.1002/recl.19951140804
Publikováno v:
American Journal of Science. 294:1135-1165
The isotopic 3 I3 C and 3 18 0 compositions of primary (marbles) and secondary (veins) calcites and primary (fahlbands and metapelites) and secondary (veins) graphites sampled across the am phibolite to granulite facies transition in the Bamble Sec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ea0b12e3b174182fde81054dd312662
https://doi.org/10.2475/ajs.294.9.1135
https://doi.org/10.2475/ajs.294.9.1135
Publikováno v:
Journal of Non-Crystalline Solids. 171:123-133
Silica sol-gels were prepared by electrodialysis of a 1.37M silica solution in water. Microscopic shrinkage of the few nanometer pores of the gels during drying was investigated by thermoporometry. The colloidal silica sol was prepared by removal of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d54b625bd0f4156c8601bddac192f62f
https://doi.org/10.1016/0022-3093(94)90348-4
https://doi.org/10.1016/0022-3093(94)90348-4
Publikováno v:
Journal of Non-Crystalline Solids. 170:113-127
The decrease of pore dimensions with drying of silica gels as a function of the preparation pH is investigated. The gels of 8.2 wt% SiO2 in water are precipitated between pH 1 and 10 in a computerized static pH equipment. The shrinkage is monitored b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f836c44ee34264fd872b6dff11a5e08
https://doi.org/10.1016/0022-3093(94)90037-x
https://doi.org/10.1016/0022-3093(94)90037-x
Publikováno v:
Journal of non-crystalline solids, 170(2), 128. Elsevier
The increase in pH in the hydrothermal fluid is studied after hydrothermal aging of porous silica gel spheres of 1–3 mm diameter. The porous silica spheres are formed by the sol-gel process from a supersaturated silica solution. The increase of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9cf8e24a10acf406f993905df2b6f7fb
https://doi.org/10.1016/0022-3093(94)90038-8
https://doi.org/10.1016/0022-3093(94)90038-8
Publikováno v:
Journal of Non-Crystalline Solids. 170:11-20
The effect of aging conditions on the pore structure development in porous hydrogel and xerogel silica spheres has been monitored by following changes in pore radius, pore volume and surface area during autoclave experiments carried out in water. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ce319d86277af7d00f08e2aa20ba4ce
https://doi.org/10.1016/0022-3093(94)90097-3
https://doi.org/10.1016/0022-3093(94)90097-3
Publikováno v:
Journal of Non-Crystalline Solids. 168:1-13
Silica sol-gel spherical bodies are prepared containing 2–13 wt% SiO 2 in water. The silica sol is prepared by addition of a sodium silicate solution to a dilute nitric acid solution. The silica sol thus obtained is introduced dropwise into hot par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee7a96a6ce833f84f1d9d56211866f12
https://doi.org/10.1016/0022-3093(94)90114-7
https://doi.org/10.1016/0022-3093(94)90114-7