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Phases in the crystallization process of Zr_(65)Al_(7.5)Ni_(10)Cu_(17.5)metallic glass

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Rare Metals 2003年第1期22卷 33-41页

作者： LEIYi DONGChuan HEIZukun moniquecalvo－dahlborg Jean－MarieDuboi DepartmentofMaterialsEngineering DalianUniversityofTechnologyDalian116024China InstituteofMaterial＆Technology DalianMaritimeUniversityDalian116024China LaboratoryofScienceandEngineeringofMaterials

The crystallization process of metallic glass Zr_(65)Al_(7.5)Ni_(10)Gu_(17.5)(atom fraction in percent) were studied by transmission electron microscopy and X-ray *** stages of crystallization process, which are indicated by the two exothermic peaks in thedifferential scanning calorimetry diagram, were studied separately. It is found that the phases inthe various stage of the crystallization are different. In the first stage, it consists mainly oftI-CuZr_2 and tP-Al_2Zr_3 phases, between which a definite orientation relationship is found. Whilein the second stage, in addition to the above phases, phase hP^2-Al_2NiZr_6 and phase hP^3-alpha-Zrappear, between which another orientation relationship is also found. At the same time, a comparisonis made based on the study of the phases exist in the arc-melted master ingot. The latticeparameters of the identified phases were determined and some interesting similarities were *** to these similarities, all the phases were classified into two groups. The first is: oB,tI-CuZr_2 and hP^3-alpha-Zr; the other is: hP^2, tP-Al_2NiZr_3 and hP^1-Al_2NiZr_6. Therelationships between phases in these two groups were investigated and the probable reasons that mayresult in these relationships were discussed.

关键词： metallic materials bulk metallic glass crystallization Zr-Al-Cu-Ni transmission electron microscopy

Zr-二十面体准晶-十次准晶伪三元系中非晶的形成

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金属学报 2003年第6期39卷 573-578页

作者：雷奕黑祖昆 moniquecalvo-dahlborg Jean-Marie Dubois 董闯大连理工大学材料科学与工程系大连海事大学材料与工艺研究所 LSG2M Ecole des Mines de NancyInstitue Nationale Polytechnique de LorrainNancyF-54042France

分析了块状非晶与稳定准晶结构上的异同点,选择两种稳定准晶(二十面体准晶和十次准晶)相互混合,在保持准晶二十面体基本结构单元的基础上,增加元素组成的混乱度,再添加有利于形成高配位多面体的元素Zr,用急冷方法制备出非晶合金。对此... 详细信息

分析了块状非晶与稳定准晶结构上的异同点,选择两种稳定准晶(二十面体准晶和十次准晶)相互混合,在保持准晶二十面体基本结构单元的基础上,增加元素组成的混乱度,再添加有利于形成高配位多面体的元素Zr,用急冷方法制备出非晶合金。对此非晶合金的热力学测试表明,该非晶形成能力和稳定性与Inoue的Zr_(65)Al_(7.5)Cu_(17.5)Ni_(10)非晶相近。

关键词：锆基非晶合金,准晶,混乱原则,非晶形成能力

Approximants in annealed IQC(Icosahedral Quasicrystal)-DQC(Decagonal Quasicrystal) pseudo-binary alloys

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中国有色金属学会会刊：英文版 2003年第6期13卷 1360-1366页

作者：雷奕 J.M.Dubois M.Calvo-dahlborg 黑祖昆 P.Weisbecker 董闯 State Key Laboratory for Materials Modification LSG2M CNRS-UMR7584 Institute of Material & Technology

The structure and microstructure of constituent phases in annealed IQC100-xDQCx alloys, made from mixtures of (Al62Cu25.5Fe12.5) icosahedral quasicrystal （IQC） and (Al70Co15Ni15) decagonal quasicrystal （DQC）, were studied by X-ray diffractometry（XRD）, scanning electron microscopy （SEM）, and energy-dispersive X-ray spectroscopy （EDAX）. These constituent phases are mostly approximants: λ, β and τ3. In addition, an Al-Cu-Co DQC phase is observed in (IQC80DQC20) alloy. The nature of these approximants and their relationship with the quasicrystals（QCs） are discussed; and the evolution of these phases is interpreted by the shifting of their e/a-constant lines in the Al-（Cu, Ni）-（Fe, Co） pseudo-ternary phase diagrams.

关键词：二元合金准晶 IQC DQC 近似解退火相图

Risk Factors with Intimate Partner Violence among Women Seeking Emergency Care

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Open Journal of Nursing 2017年第1期7卷 86-97页

作者： Darcia Pratt-Eriksson Elisabeth dahlborg-Lyckhage Ingegerd Bergbom Institute of Health and Care Sciences Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden Neurological Department Karolinska University HospitalStockholmSweden University West TrollhattanSweden

Background: Identifying women at risk for violence caused by intimate partner violence is difficult in connection with visits at emergency department. Aims and objectives: The aim of this study was to explore and describe risk factors of IPV reported by women in connection with seeking emergency care, Design: This study is part of a larger study using an explorative and comparative design. Method: Based upon data from a questionnaire and some demographic data, 82 women who reported to have experienced intimate partner violence answered the Danger Assessment Scale. Results: The results showed that the violence escalated in frequency and severity when a weapon such as a knife or gun was used to harm the women. When the abuser used narcotics and threatened the woman with a weapon, the risk of being injured increased. The odds for being threatened to death when the abuser was reported to use narcotics and illegal drugs was about thirteen times higher compared to the case when the abuser was not using narcotics. Other life threatening factors were discovered such as the man’s capability of killing the woman. Conclusion: By using a questionnaire about the violence, healthcare personnel can identify women who are at risk of being severely injured or killed. By identifying these women, one can take action to provide for their safety. Relevance to Clinical Practice: Using the Danger Assessment instrument can facilitate health care personnel’s ability at emergency departments to identify women at risk for lethal violence.

关键词： Intimate Partner Violence Lethal Violence Abuse Women Nursing Care Emergency Care

Identifying Lifetime and Occurrence of Intimate Partner Violence among Women in Sweden Seeking Emergency Care

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Open Journal of Nursing 2015年第6期5卷 548-557页

作者： Darcia Pratt-Eriksson Elisabeth dahlborg-Lyckhage Caroline Lind Katarina Sundberg Ingegerd Bergbom Institute of Health and Care Sciences Sahlgrenska Akademy University of Gothenburg Gothenburg Sweden Neurological Department Huddinge Karolinska University Hospital Stockholm Sweden University West Trollh&aumlttan Sweden Emergency Care Emergency Department Kung&aumllv Hospital Kung&aumllv Sweden Psychiatric Care Psychiatric Outpatient Clinic Community Hospital Lilla Edet Sweden

Background: Sweden is known for its strong views on equality between men and women. Nevertheless, if one scratches the surface, one will realize that intimate partner violence (IPV) is a problem meriting much closer attention. Emergency nurses have an important role in identifying women who have IPV experiences. Objective: To identify and investigate the occurrence of reported experienced IPV during their lifetime among women seeking emergency care. Design: An explorative and comparative design was used based on answers on the Abuse Assessment Screen questionnaire and some demographic data. The data was described and analyzed using the Statistical Package for the Social Sciences version 21. Results: Of the 300 invited women visiting an emergency department in a small town, 234 completed the questionnaire. Of these 234, 82 (35%) reported having experienced emotional;physical or sexual violence and 31 (13%) reported to being afraid of their partner. Of the women 181 had one child or more and 58 (32%) of these reported having been abused. Of all women, with four or more children, 75% (15) reported to have been abused, while only 25% (5) reported no abuse. Of the 82 women who reported having been abused 12 (15%) reported being abused in the course of the year prior to pregnancy and 9 (11%) during pregnancy, often several times. The main abuser was the woman’s husband, boyfriend, cohabitating partner, ex-partner, or someone else who was seen as a relative, e.g., a parent. Conclusion: Using the questionnaire AAS may contribute to identifying victims of intimate partner violence and increasing health care practitioners’ attentiveness concerning the type of injury, frequency of care seeking and actions that may indicate such violence lead to changes of the woman’s situation.

关键词： Intimate Partner Violence Pregnancy Abuse Women Abuse Assessment Screen

[Al62Cu25.5Fe12.5]100-x[Al70Co15Ni15]x合金中AlCuCo准晶的形成

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[Al62Cu25.5Fe12.5]100-x[Al70Co15Ni15]x合金中AlCuCo准晶的形成