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Characteristic analysis of bleeding effect on standing column well (SCW) type geothermal heat exchangerCHOI Hoon-ki1, YOO Geun-jong1, LIM Kyung-bin2, LEE Sang-hoon3, LEE Chang-hee4(1. Department... resistance; bleeding effect......
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be attributed to the hybridization of Fe and Ti occurring at the ferromagnetic-ferroelectric interface. Key words: multiferroic effect; ferroelectricity; magnetic properties; magnetoelectric effect 1 Introduction Multiferroic effect, which involves two or more of ferroelectric, ferromagnetic, and ferroelastic phenomena, has been the subject of considerable interest due......
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J. Cent. South Univ. (2019) 26: 3372-3387 DOI: https://doi.org/10.1007/s11771-019-4260-y Coupling effect of evaporation and condensation processes of organic Rankine cycle for geothermal power..., cooling water temperature difference and pinch point temperature difference are often fixed according to engineering experience. In order to optimize the ORC system comprehensively, the coupling effect......
the NiFe2O4/NiO bonding interface and exhibits a deep penetration in the NiFe2O4 due to the Kirkendall effect. Furthermore, SEM observations reveal that the needle-like nickel ferrite precipitates form in NiO near the interface and the formation mechanism of them are inferred to be diffusion type solid-state phase changes. Key words: NiFe2O4; microstructure; diffusion; Kirkendall effect 1 Introduction......
J. Cent. South Univ. Technol. (2008) 15: 429-433 DOI: 10.1007/s11771-008-0080-1 Influence of Tb substitution on low-field magnetocaloric effect in Gd5Si1.72Ge2.28 alloy DENG Jian-qiu(邓健秋)1... 4 times as large as that of (Gd0.3Dy0.7)5Si4 compound (|?Smax| = 2.24 J/(kg?K), TC = 198 K). Key words: rare earth alloy; magnetic entropy change; magnetic phase transition; magnetocaloric effect......
chromizing coating exhibits a increased oxidation resistance, due to the formation of purer and denser chromia scale. The effect of Al2O3 on the coating formation and the coating oxidation behavior was discussed in details. Key words: electrodeposition; composite coating; oxidation; reactive element effect ......
J. Cent. South Univ. (2020) 27: 3839-3851 DOI: https://doi.org/10.1007/s11771-020-4503-y Torsional dynamic response of tapered pile considering compaction effect and stress diffusion effect GUAN..., Changsha 410075, China Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020 Abstract: Considering both the compaction effect of pile surrounding soil......
Ti-22Al-26Nb合金的高温氧化行为 高春香1,张英1,王蕾1,王淑菊1,赵书彦1,张学军1 (1.沈阳化工学院,辽宁,沈阳,110142) 摘要:采用热重法研究Ti-22Al-26Nb合金在800和900 ℃的高温氧化行为.利用X射线衍射分析(XRD),扫描电镜(SEM)对氧化膜的相组成和形貌进行分析.结果表明:在氧化初期该合金遵循抛物线规律,而20 h以后,合金的氧化动力学符合直线规律.氧化后的产物主要由TiO_2,AlNbO_4和Nb_2TiO_7组成,氧化膜出现了分层结构且氧化温度愈高,分层愈明显. 关键词:Ti-22Al-26Nb; 高温氧化; Nb的影响; Ti-22Al-26Nb; high temperature oxidation; effect of Nb; [全文内容正在添加中] ......
