Skip to main content Accessibility help
×
Home
Hostname: page-component-cf9d5c678-5tm97 Total loading time: 0.17 Render date: 2021-07-29T19:39:56.126Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true, "newUsageEvents": true }

Mechanochemical Synthesis of ZrTiO4 Precursor from Inhomogeneous Mixed Gels

Published online by Cambridge University Press:  21 February 2011

Tetsuhiko isobe
Affiliation:
Faculty of Science and Technology, Keio university, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223,Japan
Yutaka Okamoto
Affiliation:
Faculty of Science and Technology, Keio university, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223,Japan
Mamoru Senna
Affiliation:
Faculty of Science and Technology, Keio university, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223,Japan
Get access

Abstract

Effects of vibration ball-milling of a powdered mixture of two gels, prepared from mixing ZrO2 andTiO2 sols, on crystallization processes during heating are studied in order to elucidate enhanced mechanochemical reactions with the aid of hydroxyl groups. TiO2 (anatase) and ZrO2 (tetragonal) crystallized at 698 K and 712 K, respectively, when heating non-milled gel mixture at 10 K min1 in air. Few reactions between the two phases were detected below 1023 K. After vibro-milling a powdered gel mixture at room temperature for 3 to 30 h, ZrTiO4 (orthorhombic) crystallized directly from non-crystalline precursors on heating to 1023 K. The fraction of crystallizedZrTi04, determined by Raman spectroscopy, increased linearly with increasing the index of micro-homogeneity for non-heated gels. We suggest that short-range ordering of ZrTiO4 rather than crystallization of individual oxides occurs through the non-thermal atomic movement between different metallic species under mechanical stress.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Senna, M., Solid State Ionics, 6365, 3 (1993).Google Scholar
2 Komatsubara, S., Isobe, T. and Senna, M., J. Am. Ceram. Soc, 77, 278 (1994).CrossRefGoogle Scholar
3 Isobe, T. and Senna, M., J. Solid State Chem., 93, 358 (1991); 93, 368 (1991).CrossRefGoogle Scholar

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Mechanochemical Synthesis of ZrTiO4 Precursor from Inhomogeneous Mixed Gels
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

Mechanochemical Synthesis of ZrTiO4 Precursor from Inhomogeneous Mixed Gels
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

Mechanochemical Synthesis of ZrTiO4 Precursor from Inhomogeneous Mixed Gels
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *