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Journal Article

Solid solution in the ZrO2-SnO2-TiO2 system

01 Jan 1989-British ceramic. Transactions and journal (Institute of Materials)-Vol. 88, Iss: 3, pp 69-74
About: This article is published in British ceramic. Transactions and journal.The article was published on 1989-01-01 and is currently open access. It has received 3 citations till now. The article focuses on the topics: Solid solution & Solubility.
Citations
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Journal ArticleDOI
TL;DR: In this paper, the authors couple FTIR and Raman spectroscopies to study the molecular structural evolution of surface sulfate species on mixed metal hydroxides as well as calcined oxides.
Abstract: Understanding the catalytic behavior of sulfated metal oxides has been the topic of several research studies in the past few decades. Their apparent super-acidic behavior has been correlated with the molecular structure of the surface sulfate species. Herein, we couple FTIR and Raman spectroscopies to study the molecular structural evolution of surface sulfate species on mixed metal hydroxides as well as calcined oxides. We show that on the surface of hydroxides, monodentate and possibly bidentate species are dominant, while for SnO2-rich samples, clusters of polymeric sulfate species may also be present. After calcination, sulfate species bind strongly on the surface of mixed oxides, and different configurations can be seen with a range of S=O functionalities of varying strength. Through comparison of the catalytic performance of all sulfate oxides in the tert-butylation of phenol, it was found that SnO2-rich samples show high TBA conversion, with monoalkylated phenols as the primary product.

47 citations

Journal ArticleDOI
TL;DR: In this article, an ultrasonic-assisted dipping of ZrO2 ceramics into molten Sn solder was performed to realize the low-temperature joining of ZRO2 poramics in this study, and the results showed that after ultrasonically dipping in molten Sn for 1200 seconds, a pure Sn solder layer with a thickness of approximately 8-9 µm was coated on the Zr O2 surface.

15 citations

Patent
18 Jun 2013
TL;DR: In this article, a pseudobrookite-type crystal structure and at least one phase comprising zirconium tin titanate are presented. And methods of preparing a porphyriac body are described.
Abstract: Disclosed herein is a ceramic body comprising at least one phase comprising a pseudobrookite-type crystal structure and at least one phase comprising zirconium tin titanate. Also disclosed are porous ceramic honeycomb structures comprising a ceramic body comprising at least one phase comprising a pseudobrookite-type crystal structure and at least one phase comprising zirconium tin titanate and methods of preparing a ceramic body comprising at least one phase comprising a pseudobrookite-type crystal structure and at least one phase comprising zirconium tin titanate.

3 citations