Recent developments in high temperature intermetallics research in China

Ye, Heng Qiang

doi:10.1016/s0966-9795(99)00132-6

Cited by 15 publications

(11 citation statements)

References 25 publications

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“…Particularly, interesting intermetallic phases from practical point of view are those containing aluminum and transition metals (Ni, Ti, Zr, Hf, V, Nb, Ta) [1,2]. Some of them have found practical application long time ago, e.g., NiAl for coating materials or Ni 3 Al for high-temperature structural materials [3][4][5]. Others, like aluminum-zirconium intermetallics, may be potentially applied in thermal nuclear reactors [6,7], also extensive work on the Al-Zrbased amorphous and nanocrystalline alloys has been reported [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Others, like aluminum-zirconium intermetallics, may be potentially applied in thermal nuclear reactors [6,7], also extensive work on the Al-Zrbased amorphous and nanocrystalline alloys has been reported [8][9][10]. Phase Al 3 Zr is desirable candidate for high-temperature structural applications [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…1 is one of the most complicated of all the transition metal aluminide binary phase diagrams [11]. According to the evaluation of Murray et 3 ; all of which experimentally are found to have extremely narrow concentration ranges [12]. Two of them Al 4 Zr 5 and Al 3 Zr 5 are high-temperature phases.…”

Section: Introductionmentioning

confidence: 99%

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Enthalpy of formation of intermetallic phases from Al–Zr system determined by calorimetric solution method

Maciąg

2017

J Therm Anal Calorim

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Intermetallic phases represent a group of materials of unique properties. Many of those materials have found practical application, whereas others are still intensively examined. There are ten stable intermetallic phases in Al-Zr system, among which few are prospective materials to work at elevated temperature, nuclear reactors, etc. On top of that, researches are focused on obtaining amorphous phases, nanoparticles and zirconium-based pressure pipes covered with aluminum. As a result, better understanding of thermal effects accompanying those compounds formation becomes crucial. In this paper, solution calorimetry method was used for determination of formation enthalpy D f H of intermetallic phases from Al-Zr system at room temperature (298 K). Experiments were conducted using test station built by author. Material used as bath was aluminum. Additionally, alloys preparation methodology was described and presented. Calorimetric measurements were taken on phases: Al 3 Zr, Al 2 Zr, Al 3 Zr 2 , AlZr, Al 2 Zr 3 , AlZr 2 and AlZr 3 . Heat of dissolution of zirconium in aluminum bath at temperature 1073 K was determined experimentally and was equal to -244.5 ± 5.4 kJ mol -1 . Obtained results of enthalpy of formation were summarized and compared with the literature data.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Enthalpy of formation of intermetallic phases from Al–Zr system determined by calorimetric solution method

Maciąg

2017

J Therm Anal Calorim

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“…Many methods were attempted to improve the toughness of chromium silicides including incorporation of a ductile second phase, grain refinement, micro-alloying and reduction of impurities, etc. Ductile second phase toughening was demonstrated to be a very effective method [12][13][14][15][16][17][18][19][20]. The copper-based solid solution (hereafter referred as Cu ss ), well-known for its excellent combination of high thermal conductivity, low coefficient of friction and excellent ductility, is an excellent toughening phase for wear resistant intermetallic alloys [21][22][23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and tribological properties of Cuss-toughened Cr–Cu–Si metal silicide alloys

Yin¹,

Wang²

2006

Journal of Alloys and Compounds

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“…Необходимо отметить, что влияние компактного нанокристаллического состояния на электронную структуру изучено пока в малой степени (см. например [28,29]), хотя электронная структура нанокластеров и изолированных на-ночастиц изучается довольно интенсивно. Основными методами получения компактных нанокристалли-а б Рис.…”

Section: Introductionunclassified

Nanoscale States in Metals, Alloys, and Intermetallic Compounds: Methods of Manufacture, Structure, Properties

Shevchenko

Stetsenko

2004

Usp. Fiz. Met.

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Наноструктурные металлические материалы, обладающие уникальны-ми свойствами благодаря характерному структурному размеру, сопос-тавимому с межатомными расстояниями в кристалле, нашли широкое применение и являются основой многих современных технологий. Цель данного обзора -представить общую картину исследований наност-руктурных состояний в компактных металлах, сплавах и интерметал-лидах, охарактеризовать основные методы получения компактных на-ноструктурных материалов, особенности их структуры и свойств. Так же кратко представлены основные модели, объясняющие особенности строения и аномальные свойства металлов и сплавов в нанокристалли-ческом состоянии.Наноструктурні металічні матеріали, що мають унікальні властивості завдяки характерному структурному параметру, співставимому із мі-жатомними відстанями у кристалі, знайшли широке застосування та є основою багатьох сучасних технологій. Мета цього огляду -предста-вити загальну картину досліджень наноструктурних станів у компакт-них металах, сплавах та інтерметалічних сполуках, дати характерис-тику основних методів отримання компактних наноструктурних мате-ріалів, їх властивостей та структурних особливостей. Також стисло представлено основні моделі, що пояснюють особливості будови та ано-мальні властивості металів та сплавів у нанокристалічному стані. Nanocrystalline metallic materials have been recognized as perspective materials for a wide range of modern technologies due to their unique properties, occurring because of their mainly structural parameters, which are comparable with the interatomic distances. This review objective is to characterize the current state of art in investigation of the nanoscale metals, alloys, and intermetallic compounds. Basic methods for preparing compact nanocrystalline materials are discussed. Recent results Успехи физ. мет. / Usp. Fiz. Met. 2004, т. 5, сс. 219-255 Îòòèñêè äîñòóïíû íåïîñðåäñòâåííî îò èçäàòåëÿ Ôîòîêîïèðîâàíèå ðàçðåøåíî òîëüêî â ñîîòâåòñòâèè ñ ëèöåíçèåé  2004 ÈÌÔ (Èíñòèòóò ìåòàëëîôèçèêè èì. Ã. Â. Êóðäþìîâà ÍÀÍ Óêðàèíû) Íàïå÷àòàíî â Óêðàèíå.

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Recent developments in high temperature intermetallics research in China

Cited by 15 publications

References 25 publications

Enthalpy of formation of intermetallic phases from Al–Zr system determined by calorimetric solution method

Enthalpy of formation of intermetallic phases from Al–Zr system determined by calorimetric solution method

Microstructure and tribological properties of Cuss-toughened Cr–Cu–Si metal silicide alloys

Nanoscale States in Metals, Alloys, and Intermetallic Compounds: Methods of Manufacture, Structure, Properties

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