Phase composition and microstructure of Ca1-3XLn 2XTiO3 (Ln=La, Nd, Sm) ceramics - Details

author：

Liang, Bingliang (Liang, Bingliang.) ^[1] | Ai, Yunlong (Ai, Yunlong.) ^[2] | Zheng, Xinghua (Zheng, Xinghua.) ^[3] (Scholars：郑兴华) | Tang, Deping (Tang, Deping.) ^[4] (Scholars：汤德平) | He, Fei (He, Fei.) ^[5]

Indexed by：

EI Scopus

Abstract：

Ca1-3xLn2xTiO3　(Ln=La,　Nd,　Sm;　x=0.13,　0.20)　ceramics　were　investigated　systematically　to　dicuss　the　influences　of　sintering　temperature,　compositions,　Ln3+　ions　on　its　sintering　property,　crystal　structure　and　microstructure.　The　results　show　that　the　dense　ceramics　were　obtained　in　the　sintering　temperature　range　of　1300∼1350　°C　and　the　relative　density　reached　over　97%.　Sintering　temperature　was　50∼150　°C　lower　than　previous　reports.　Single　orthogonal　perovskite　structure　phase　was　formed　except　that　a　little　secondary　phase　Sm　2Ti2O7　was　detected　by　XRD　analysis　when　x=0.20　and　Ln=Sm.　The　growth　pattern　of　Ca1-3xLn2xTiO　3　grains　was　terracing　growth.　©　(2012)　Trans　Tech　Publications.

Keyword：

Calcium Ceramic materials Chemical bonds Crystal microstructure Electronegativity Engineering technology Lanthanum Microstructure Neodymium Perovskite Sintering

Community：

[ 1 ] [Liang, Bingliang]College of Materials Science and Engineering, Nanchang Hangkong University, No. 696 South Fenghe Road, Nanchang, Jiangxi, 330063, China
[ 2 ] [Ai, Yunlong]College of Materials Science and Engineering, Nanchang Hangkong University, No. 696 South Fenghe Road, Nanchang, Jiangxi, 330063, China
[ 3 ] [Zheng, Xinghua]College of Materials Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, Fujian, 350108, China
[ 4 ] [Tang, Deping]College of Materials Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, Fujian, 350108, China
[ 5 ] [He, Fei]College of Materials Science and Engineering, Nanchang Hangkong University, No. 696 South Fenghe Road, Nanchang, Jiangxi, 330063, China