In situ observation of NaBi(WO4)2 dendrite growth and the study on microstructure of solidification

被引：0
|
作者：
Fei Ai
Yong Hong
WeiQing Jin
HaoSu Luo
Yan Liu
XiuHong Pan
机构：
[1] Chinese Academy of Sciences,Shanghai Institute of Ceramics
来源：
Science in China Series G: Physics, Mechanics and Astronomy | 2007年 / 50卷
关键词：
oxide; dendrite; observation; solidification structure;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The dendrite growth process of transparent NaBi(WO4)2 with small prandtl and high melting point was studied by using the in-situ observation system. According to the dynamic images and detailed information, there are two kinds of restriction effect on the dendrite growth, the competition between arms and branches and the convection in the melt. The dendrite growth rate was time dependent, and the rate of arm growth reached the maximum 5.8 mm/s in the diffusive-advective region and rapidly decreased in the diffusive-convective region. The growth rate of branch had the same change trends as the arm’s. Based on the EPMA-EDS data of solidification structure of quenched NaBi(WO4)2 melt, it was found that there were component differences from stoichiometric concentration in the melt near the interface during the growth process.
引用
收藏
页码：525 / 530
页数：5
相关论文
共 50 条
  • [21] Nd:NaBi（WO4）2晶体光谱性能研究
    朱忠丽
    孙域
    万玉春
    张建军
    刘景和
    材料科学与工程学报, 2005, (03) : 377 - 379
  • [22] Host sensitization of luminescence of lanthanide activators in NaBi(WO4)2
    Kshetrapal, Supriya
    Ugemuge, N. S.
    Sharma, Khushbu
    Nafdey, Renuka
    Nagpure, I. M.
    Moharil, S. V.
    RADIATION EFFECTS AND DEFECTS IN SOLIDS, 2023, 178 (9-10): : 1211 - 1231
  • [23] NABI(WO4)2 ARE NEW SCINTILLATION MONOCRYSTALS FOR ELECTROMAGNETIC CALORIMETERS
    BARYSHEVSKII, VG
    ZADNEPROVSKII, BA
    KORZHIK, MV
    KACHANOV, VA
    NEFEDOV, PV
    NEFEDOV, VA
    PAVLENKO, VB
    SOLOVYANOV, VL
    FEDOROV, AA
    KHODYREV, VY
    PISMA V ZHURNAL TEKHNICHESKOI FIZIKI, 1992, 18 (13): : 17 - 21
  • [24] THE INVESTIGATION OF A MODEL OF AN EM CALORIMETER ON NABI(WO4)(2) CRYSTALS
    KALININ, BN
    KRECHETOV, YF
    KOLCHUZHKIN, AM
    KUSTOV, DE
    MOISEENKO, AV
    NAUMENKO, GA
    POTYLITSYN, AP
    SAIGUSHKIN, OC
    SHUVALOV, YN
    TROPIN, IS
    STRIKHANOV, MN
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1995, 361 (1-2): : 157 - 160
  • [25] The radiation induced colour centers in the NaBi(WO4)2 crystal
    Shi, Hongsheng
    Qin, Laishun
    Chai, Wenxiang
    Shu, Kangying
    Journal of Alloys and Compounds, 2009, 475 (1-2): : 510 - 512
  • [26] The radiation induced colour centers in the NaBi(WO4)2 crystal
    Shi, Hongsheng
    Qin, Laishun
    Chai, Wenxiang
    Shu, Kangying
    JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 475 (1-2) : 510 - 512
  • [27] KGd(WO4)(2)-KNd(WO4)(2) and RbGd(WO4)(2)-RbNd(WO4)(2) phase diagrams and growth of Nd-doped KGd(WO4)(2) and RbGd(WO4)(2) single crystals
    Pavlyuk, AA
    Yudanova, LI
    Potapova, OG
    INORGANIC MATERIALS, 1997, 33 (01) : 64 - 67
  • [28] A study of electronic and optical properties of NaBi(WO4)2: A disordered double tungstate crystal
    Tyagi, Mohit
    Singh, S. G.
    Sangeeta
    Prasad, R.
    Auluck, S.
    Singh, D. J.
    PHYSICA B-CONDENSED MATTER, 2010, 405 (16) : 3267 - 3271
  • [29] STUDY OF TEMPERATURE-DEPENDENCE OF LIGHT YIELD FROM NABI(WO4)2 CRYSTALS
    AMOSOV, CY
    KALININ, BN
    KRECHETOV, YF
    MOISEENKO, AV
    NAUMENKO, GA
    POTYLITSIN, AP
    SARYTCHEV, VP
    SHUVALOV, YN
    VZNUZDAEV, YA
    SAMSONOV, VM
    SOLODOV, JP
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 350 (1-2): : 204 - 207
  • [30] GROWTH AND GENERATION PROPERTIES OF NABI(WO4)2-ND3+ SINGLE-CRYSTALS
    KAMINSKII, AA
    KHOLOV, A
    KLEVTSOV, PV
    KHAFIZOV, SK
    INORGANIC MATERIALS, 1989, 25 (06) : 890 - 892
12345