首页|Sol-gel Process for the Synthesis of Single-phased BaTi_2O_5 Powder

Sol-gel Process for the Synthesis of Single-phased BaTi_2O_5 Powder

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The single-phased BaTi_2O_5 (BT_2) powders were synthesized by a sol-gel method by using barium acetate and tetrabutyl titanate as starting materials and ZrO_2 as stabilizing agent. A samll amout of ZrO_2 is effective to prepare BT_2 in a single phase and the second phase of BaTiO_3 (BT) and Ba_6Ti_(17)O_(40) (B_6T_(17)) increases with increasing ZrO_2 content. BT_2 starts to form at about 700℃ and BT_2 in a single phase is obtained at 800 to 1250℃ in air at 0.5 mol% ZrO_2. The synthesized grains at 900 ℃ are nearly spherical in shape and whose sizes are 0.2-0.5 μm.

sol-gelBaTi_2O_5powdersZrO_2

Guojun Li、Qi Zhang、Ruiming Ren、Hao Lue

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Liaoning Key Materials Laboratory for Railway, Dalian Jiaotong University, Dalian 116028, China School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China

School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China

Liaoning Key Materials Laboratory for Railway, Dalian Jiaotong University, Dalian 116028, China

2010

10.4028/www.scientific.net/KEM.434-435.256

Key engineering materials

Key engineering materials

ISSN：1013-9826
年,卷(期)：2010.434/435
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