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Lawrence Berkeley National Laboratory Recent Work Title SINTERING OF HIGH-PURITY SUBMICRON LEAD TITANATE CONTAINING NIOBIUM Permalink
| Content Provider | Semantic Scholar |
|---|---|
| Copyright Year | 2012 |
| Abstract | Chemically prepared lead titanate powders containing 1, 3, and 6 at.% Nb were obtained. From a characterization study of the as-received powders, an initial heat treatment before sintering was established. Sintering and grain growth iesults of the chemically prepared material were compared to laboratory PbTiO3 produced by calcination of mixed oxides in the conventional processing method. The addition of niobium to lead titanate affects both the sintering and grain growth kinetics; densification and grain growth are both decreased with increasing niobium concentrations. Differences in the sintering and grain growth characteristics were interpreted for the chemically prepared and laboratory materials. At a faster heating rate, the density at temperature of the as-received material increased with time. An increase in the compaction pressure of the chemically treated material led to an increase in the initial density at temperature. Howevnr, in the case of 3 at.% Nb, the density. decreased. The changes in density and grain growth behavior were analyzed from photomicrographs of polished sintered specimens containing 3at.%Nb. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://cloudfront.escholarship.org/dist/prd/content/qt9171r2kr/qt9171r2kr.pdf?t=p0ma2p |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
