Technical ceramics from samarium monosulfide for the thermal explosion and magnetron methods of production of SmS films

被引：6

作者：

Bamburov, V. G. ^{[1
]}

Andreev, O. V. ^{[2
]}

Ivanov, V. V. ^{[3
]}

Voropai, A. N. ^{[3
]}

Gorshkov, A. V. ^{[3
]}

Polkovnikov, A. A. ^{[2
]}

Bobylev, A. N. ^{[2
]}

机构：

[1] Russian Acad Sci, Inst Solid State Chem, Ural Branch, Ekaterinburg 620219, Russia

[2] Tyumen State Univ, Tyumen 625003, Russia

[3] ZAO Tekhnokomplekt Interreg Assoc Tech Acquisit, Dubna 141981, Moscow Oblast, Russia

来源：

DOKLADY PHYSICAL CHEMISTRY | 2017年 / 473卷

关键词：

PHASE-DIAGRAM;

D O I：

10.1134/S0012501617040042

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Physicotechnical foundations of producing technical ceramics from samarium monosulfide were developed. The stable daltonide-type compound SmS forms a solid solution primarily within the range of anion structural vacancies Sm1 + x S1-x [ ](2x) (x = 0-0.035) (1500A degrees D<inverted exclamation>). In the Sm-S-O system, the compound SmS is in equilibrium with the Sm3S4 and Sm2O2S phases. The surface layer of bulk samples and films of SmS contains the phases Sm3S, Sm2O2S, and xSm(2)SO(4) center dot (1-x)Sm2O3. Samarium sulfide is thermally hydrolyzed (> 300A degrees C) and oxidized (> 220A degrees C) to form the Sm3S4 and Sm2O2S phases. In synthesizing samarium monosulfide from elements by an ampule method, addition of a 15-20% excess of metallic samarium to the initial mixture affords SmS in more than 95 mol % yield. The contents of the equilibrium impurities Sm3S4 and Sm2O2S are minimized. Technical ceramics based on SmS was obtained as sintered pellets 50 and 75 mm in diameter with a compressive strength of 45 MPa, a flexural strength of 1.6 MPa, and a density of 4.89 g/cm(3). The rate of SmS film sputtering from a ceramic target on a NanoFab-100 platform under the optimal sputtering conditions (390 V, 150 W) was 1 /s. A SmS powder containing particles of 90-120 mu m in size was used for thermal explosion spraying of semiconductor thermal sensors shaped as cubes with a side length of 5 and 10 mm.

引用

页码：66 / 70

页数：5

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