کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1491613 | 992355 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase relations of the Li2O–Ta2O5–B2O3 and Li2O–WO3–B2O3 systems and promising nonlinear optical compounds in K2O–Ta2O5–B2O3 system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The subsolidus phase equilibria of the Li2O–Ta2O5–B2O3, K2O–Ta2O5–B2O3 and Li2O–WO3–B2O3 systems have been investigated mainly by means of the powder X-ray diffraction method. Two ternary compounds, KTaB2O6 and K3Ta3B2O12 were confirmed in the system K2O–Ta2O5–B2O3. Crystal structure of compound KTaB2O6 has been refined from X-ray powder diffraction data using the Rietveld method. The compound crystallizes in the orthorhombic, space group Pmn21 (No. 31), with lattice parameters a = 7.3253(4) Å, b = 3.8402(2) Å, c = 9.3040(5) Å, z = 2 and Dcalc = 4.283 g/cm3. The powder second harmonic generation (SHG) coefficients of KTaB2O6 and K3Ta3B2O12 were five times and two times as large as that of KH2PO4 (KDP), respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 44, Issue 1, 8 January 2009, Pages 189–193
Journal: Materials Research Bulletin - Volume 44, Issue 1, 8 January 2009, Pages 189–193
نویسندگان
Gemei Cai, W.Y. Wang, M. Li, Y.F. Lou, Y.P. Sun, X.L. Chen,