ゾル-ゲル法により合成したNa2xMg1-xTi4 (PO4) 6の焼結と性質

岸岡 昭, 佐藤 克之, 板谷 清司, F. スコット ハウエル, 木下 眞喜雄

doi:10.11451/mukimate1953.1994.260

書誌事項

タイトル別名

Sintering and Properties of Na2xMg1-xTi4 (PO4) 6 Prepared by Sol-Gel Process
Preparation of Ultra-Low Thermal Expansion Ceramics
超低熱膨張性セラミックスの製造

説明

In order to make the near-zero-expansion double phosphate ceramics, the powders of solid solutions of MgTi₄ (PO₄) ₆ (MTP) and NaTi₂ (PO₄) ₃ (NTP) : Na_2xMg_1-xTi₄ (PO₄) ₆, were prepared by sol-gel process. The formations of the solid solutions were confirmed by comparing the lattice parameters calculated for the products with those of MTP and NTP. The specimen with X = 0.5 which was prepared by calcining the obtained powder at 700°C for 1 h and by sintering the compact at 1200°C for 5 h possessed a relative density of 91%. The thermal expansion coefficients of the sintered specimens with X = 0.4-0.6 were 0.21-1.0 x 10^-6°C^-1 in the range from room temperature to 700°C and the bending strengths were 21-62 MPa.

収録刊行物

石膏と石灰

石膏と石灰 1994 (251), 260-265, 1994

無機マテリアル学会

キーワード

詳細情報詳細情報について

CRID: 1390001205389866368

NII論文ID: 130004011560

DOI: 10.11451/mukimate1953.1994.260

ISSN: 21854351

データソース種別

JaLC
CiNii Articles

抄録ライセンスフラグ: 使用不可

書き出し

問題の指摘

ゾル-ゲル法により合成したNa<SUB>2<I>x</I></SUB>Mg<SUB>1-<I>x</I></SUB>Ti<SUB>4</SUB> (PO<SUB>4</SUB>) <SUB>6</SUB>の焼結と性質