{"title":"Mobility-Fluctuation 1/f Noise in Nonuniform Nonlinear Samples and in Mesa Structures","authors":"A. Ziel, C. V. Vliet","doi":"10.1002/PSSA.2210720155","DOIUrl":"https://doi.org/10.1002/PSSA.2210720155","url":null,"abstract":"","PeriodicalId":17793,"journal":{"name":"July 16","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1982-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81174186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Dawar, A. Mohammad, P. Kumar, O. P. Taneja, P. Mathur
{"title":"Effect of Indium on the Electrical Transport Properties of Epitaxial Thin SnTe Films","authors":"A. Dawar, A. Mohammad, P. Kumar, O. P. Taneja, P. Mathur","doi":"10.1002/PSSA.2210720163","DOIUrl":"https://doi.org/10.1002/PSSA.2210720163","url":null,"abstract":"","PeriodicalId":17793,"journal":{"name":"July 16","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1982-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87446200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Stacking Faults in Recrystallized Cadmium Sulphide","authors":"J. Echigoya, J. W. Edington","doi":"10.1002/PSSA.2210720142","DOIUrl":"https://doi.org/10.1002/PSSA.2210720142","url":null,"abstract":"","PeriodicalId":17793,"journal":{"name":"July 16","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1982-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84594783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Thin copper single crystals oriented for single glide are in situ strained in a transmission electron microscope. The selection of glide systems is studied in several ways. The results can be rationalised when the inhomogeneity of the plastic deformation and the different glide paths of the dislocations are taken into account. The activity of a glide system depends not only on its Schmid factor but also strongly on the orientation of the glide system with respect to the foil plane. Dunne, mittelorientierte Kupfereinkristalle werden in einem Transmissionelektronenmikroskop wahrend der Beobachtung zugverformt. Die Auslese von Gleitsystemen wird auf verschiedene Weise untersucht. Die Ergebnisse stimmen uberein, wenn man die Inhomogenitat der plastischen Deformation und die verschiedenen Laufwege der Versetzungen berucksichtigt. Die Aktivitat der Gleitsysteme hangt nicht nur vom Schmidfaktor sondern stark von der Orientierung des Gleitsystems relativ zur Folienebene ab.
{"title":"Deviations from Schmid's Law in Thin Copper Single Crystals","authors":"H. Kolkman","doi":"10.1002/PSSA.2210720119","DOIUrl":"https://doi.org/10.1002/PSSA.2210720119","url":null,"abstract":"Thin copper single crystals oriented for single glide are in situ strained in a transmission electron microscope. The selection of glide systems is studied in several ways. The results can be rationalised when the inhomogeneity of the plastic deformation and the different glide paths of the dislocations are taken into account. The activity of a glide system depends not only on its Schmid factor but also strongly on the orientation of the glide system with respect to the foil plane. \u0000 \u0000 \u0000 \u0000Dunne, mittelorientierte Kupfereinkristalle werden in einem Transmissionelektronenmikroskop wahrend der Beobachtung zugverformt. Die Auslese von Gleitsystemen wird auf verschiedene Weise untersucht. Die Ergebnisse stimmen uberein, wenn man die Inhomogenitat der plastischen Deformation und die verschiedenen Laufwege der Versetzungen berucksichtigt. Die Aktivitat der Gleitsysteme hangt nicht nur vom Schmidfaktor sondern stark von der Orientierung des Gleitsystems relativ zur Folienebene ab.","PeriodicalId":17793,"journal":{"name":"July 16","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1982-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73268812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vacancy concentrations and vacancy mobility are studied in stoichiometric NiGa. The thermal vacancy content, which is determined from density and thermal expansion experiments amounts to some percents. The activation energy for vacancy formation for the temperature interval in which the experiments are carried out is 0.20 eV. During the thermal expansion measurements an after-effect in the macroscopic length is measured simultaneously. The annealing curves are well described by first-order kinetics and from the temperature dependence of the time constants an activation energy for vacancy migration of (1.34 ± 0.04) eV is derived. On the basis of the present after-effect measurements and tracer self-diffusion measurements a diffusion mechanism is proposed for NiGa: nickel and gallium migration via nearest-neighbour jumps and through single as well as divacancies. In stochiometrischem NiGa werden Leerstellenkonzentration und Leerstellenbeweglichkeit untersucht. Der Anteil thermischer Leerstellen der aus der Dichte und thermischen Ausdehnungs-Messungen bestimmt wird, liegt bei einigen Prozent. Die Aktivierungsenergie fur die Leerstellenbildung im Temperaturintervall, bei dem die Experimente durchgefuhrt werden, betragt 0,20 eV. Wahrend der Messungen der thermischen Ausdehnung wird gleichzeitig ein Nachwirkungseffekt der makroskopischen Lange gemessen. Die Ausheilkurven lassen sich gut mit einer Kinetik erster Ordnung beschreiben und aus der Temperaturabhangigkeit der Zeitkonstanten wird eine Aktivierungsenergie fur Leerstellenwanderung von (1,34 ± 0,04) eV abgeleitet. Auf der Grundlage der angegebenen Nachwirkungsmessungen und Tracer-Selbstdiffusionsmessungen wird ein Diffusions-mechanismus fur NiGa vorgeschlagen: Nickel- und Galliumwanderung uber Sprunge nachster Nachbarn und durch Einfach- und Doppel-Leerstellen.
在化学计量NiGa中研究了空位浓度和空位迁移率。由密度和热膨胀实验确定的热空位含量为若干百分比。在进行实验的温度区间内，空位形成的活化能为0.20 eV。在热膨胀测量过程中，同时测量了宏观长度的后效。退火曲线用一阶动力学很好地描述，并从时间常数的温度依赖性推导出空位迁移的活化能为(1.34±0.04)eV。在现有的后效测量和示踪剂自扩散测量的基础上，提出了镍镓的扩散机制:镍和镓通过最近邻跳跃、单间隙和间隙迁移。在化学计量学中，我们研究了leerstellenkonconcentration和Leerstellenbeweglichkeit untersucht。Der Anteil thermischer Leerstellen Der ausdehnunings - messungen beestimmt wind, light beigenen proproment。温度区间内leerstellenbilbild的动态动力学研究[j] .中国机械工程，2009(1):1 - 2。这句话的意思是:“我的意思是，我的意思是，我的意思是，我的意思是，我的意思是，我的意思是。”Die Ausheilkurven lassen sich schititk erster Ordnung beschiben and ausitchabhangen der Zeitkonstanten and aktivierungerggie for Leerstellenwanderung von(1,34±0,04)eV abgeleet。镍离子和镓离子的扩散机理研究。镍离子和镓离子的扩散机理研究。
{"title":"Vacancies in NiGa","authors":"Van Ommen","doi":"10.1002/PSSA.2210720127","DOIUrl":"https://doi.org/10.1002/PSSA.2210720127","url":null,"abstract":"Vacancy concentrations and vacancy mobility are studied in stoichiometric NiGa. The thermal vacancy content, which is determined from density and thermal expansion experiments amounts to some percents. The activation energy for vacancy formation for the temperature interval in which the experiments are carried out is 0.20 eV. During the thermal expansion measurements an after-effect in the macroscopic length is measured simultaneously. The annealing curves are well described by first-order kinetics and from the temperature dependence of the time constants an activation energy for vacancy migration of (1.34 ± 0.04) eV is derived. On the basis of the present after-effect measurements and tracer self-diffusion measurements a diffusion mechanism is proposed for NiGa: nickel and gallium migration via nearest-neighbour jumps and through single as well as divacancies. \u0000 \u0000 \u0000 \u0000In stochiometrischem NiGa werden Leerstellenkonzentration und Leerstellenbeweglichkeit untersucht. Der Anteil thermischer Leerstellen der aus der Dichte und thermischen Ausdehnungs-Messungen bestimmt wird, liegt bei einigen Prozent. Die Aktivierungsenergie fur die Leerstellenbildung im Temperaturintervall, bei dem die Experimente durchgefuhrt werden, betragt 0,20 eV. Wahrend der Messungen der thermischen Ausdehnung wird gleichzeitig ein Nachwirkungseffekt der makroskopischen Lange gemessen. Die Ausheilkurven lassen sich gut mit einer Kinetik erster Ordnung beschreiben und aus der Temperaturabhangigkeit der Zeitkonstanten wird eine Aktivierungsenergie fur Leerstellenwanderung von (1,34 ± 0,04) eV abgeleitet. Auf der Grundlage der angegebenen Nachwirkungsmessungen und Tracer-Selbstdiffusionsmessungen wird ein Diffusions-mechanismus fur NiGa vorgeschlagen: Nickel- und Galliumwanderung uber Sprunge nachster Nachbarn und durch Einfach- und Doppel-Leerstellen.","PeriodicalId":17793,"journal":{"name":"July 16","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1982-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77567161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Del Moral, J. F. D. Montenegro, J. S. Abell, M. R. Ibarra
Magnetisation and paramagnetic susceptibility measurements are presented for a single crystal of ErZn along the main symmetry directions. Magnetostriction is measured along the 〈100〉 and 〈111〉 directions. From the analysis of the field dependence of the forced magnetostriction at the ordered-phase the single-ion and pseudodipolar magnetoelastic interaction parameters associated with the tetragonal distortion are obtained, being respectively M = 12 K/atom and D ≈ 0.8 K/atom. The transverse magnetostriction along the 〈100〉 direction is analyzed in terms of effective conventional magnetostriction parameters hi. From parastriction experiment values for M and the quadrupolar effective interaction parameter are deduced, viz. M = (15 ± 1) K/atom and G1 = (2.5 ± 1) mK/atom. L'aimantation et la susceptibilite paramagnetique ont ete mesurees dans un monocristal de ErZn selon les principales directions de symmetrie. La magnetostriction a ete mesuree selon les directions 〈100〉 et . De l'analyse de la dependence avec le champ magnetique de la magnetostriction forcee – dans le domaine ordone nous avons obtenu les parametres a un-ion et pseudodipolaire de l'interaction magnetoelastique, etant respectivement M = 12 K/atome et D ≈ 0,8 K atome. La magnetostriction transversal selon la direction 〈100〉 est analysee en fonction de parametres conventionnels effectifs, hi. De la mesure de la parastriction les valeurs de M et le parametre l'interaction effectif quadropolaire sont obtenus, M = (15 ± 1) K/atome et G1 = (2,5 ± 1) mK/atome.
给出了二锌单晶沿主对称方向的磁化率和顺磁化率测量结果。磁致伸缩沿着< 100 >和< 111 >方向测量。通过对有序相强制磁致伸缩的场依赖性分析，得到了与正方畸变相关的单离子和伪偶极磁弹性相互作用参数，分别为M = 12 K/原子和D≈0.8 K/原子。根据有效常规磁致伸缩参数hi，分析了沿< 100 >方向的横向磁致伸缩。根据M的参数化实验值，推导出四极有效相互作用参数:M =(15±1)K/原子，G1 =(2.5±1)mK/原子。在对称方向的原理下，单晶ErZn单晶的磁化顺磁性的实现。磁致伸缩是在< 100 > et方向上测量的。De分析De la依赖用冠军magnetique De la磁致伸缩forcee——在葡萄园ordone常识我们obtenu莱斯产品un-ion等pseudodipolaire magnetoelastique可能有相互作用,etant respectivement M = 12 K / atome et D≈0 8 K atome。La磁致伸缩横向selon La方向< 100 >测试分析了常规参数的作用效果。De la measure De la parpartion les valeurs De M和le parameter l'相互作用效应四极子振幅，M =(15±1)K/原子，G1 =(2,5±1)mK/原子。
{"title":"On the Magnetization and Magnetostriction of ErZn","authors":"A. Del Moral, J. F. D. Montenegro, J. S. Abell, M. R. Ibarra","doi":"10.1002/PSSA.2210720136","DOIUrl":"https://doi.org/10.1002/PSSA.2210720136","url":null,"abstract":"Magnetisation and paramagnetic susceptibility measurements are presented for a single crystal of ErZn along the main symmetry directions. Magnetostriction is measured along the 〈100〉 and 〈111〉 directions. From the analysis of the field dependence of the forced magnetostriction at the ordered-phase the single-ion and pseudodipolar magnetoelastic interaction parameters associated with the tetragonal distortion are obtained, being respectively M = 12 K/atom and D ≈ 0.8 K/atom. The transverse magnetostriction along the 〈100〉 direction is analyzed in terms of effective conventional magnetostriction parameters hi. From parastriction experiment values for M and the quadrupolar effective interaction parameter are deduced, viz. M = (15 ± 1) K/atom and G1 = (2.5 ± 1) mK/atom. \u0000 \u0000 \u0000 \u0000L'aimantation et la susceptibilite paramagnetique ont ete mesurees dans un monocristal de ErZn selon les principales directions de symmetrie. La magnetostriction a ete mesuree selon les directions 〈100〉 et . De l'analyse de la dependence avec le champ magnetique de la magnetostriction forcee – dans le domaine ordone nous avons obtenu les parametres a un-ion et pseudodipolaire de l'interaction magnetoelastique, etant respectivement M = 12 K/atome et D ≈ 0,8 K atome. La magnetostriction transversal selon la direction 〈100〉 est analysee en fonction de parametres conventionnels effectifs, hi. De la mesure de la parastriction les valeurs de M et le parametre l'interaction effectif quadropolaire sont obtenus, M = (15 ± 1) K/atome et G1 = (2,5 ± 1) mK/atome.","PeriodicalId":17793,"journal":{"name":"July 16","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1982-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85993887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
During heat-treatment of Mg-containing Al-based alloys, the Mg concentration changes considerably. As compared to the pure material significant surface corrosion is observed for the air heattreated alloy. In vacuum heat treatment the Mg content of the surface layer increases considerably. Initially metallic Mg is detected on the surface which, however, becomes oxidized later on. On the basis of the investigations one has to assume that the process is not a simple diffusion mechanism only. A new conception is formed for the process according to which it is controlled by the breaking up of the Al2O3 barrier layer by Mg. Wahrend einer Warmebehandlung von Mg enthaltenden Al-Legierungen andert sich die Mg-Konzentration betrachtlich. Im Vergleich zu dem reinen Material wird eine signifikante Oberflachenkorrosion fur in Luft getemperte Legierungen beobachtet. Bei Vakuumtemperung steigt der Mg-Gehalt der Oberflachenschicht betrachtlich an. Anfangs wird metallisches Mg auf der Oberflache nachgewiesen, das jedoch spater oxidiert wird. Auf der Grundlage der Untersuchungen mus angenommen werden, das der Prozess nicht nur ein einfacher Diffusionsmechanismus ist. Eine neue Vorstellung fur den Prozes wird vorgeschlagen, derzufolge dieser Prozes durch das Aufbrechen der Al2O3-Barrierenschicht durch Mg gesteuert wird.
在含镁铝基合金热处理过程中，镁的浓度变化较大。与纯材料相比，空气热处理合金的表面腐蚀明显。在真空热处理中，表层的Mg含量显著增加。最初在表面检测到金属Mg，但随后被氧化。在研究的基础上，我们必须假设这个过程不仅仅是一个简单的扩散机制。提出了镁对Al2O3势垒层的破坏是控制这一过程的新概念。引用本文:魏连德。镁离子焓变的热动力学研究。Im Vergleich zu dem reinen材料在Luft getemperte Legierungen beobachtet中具有显著的oberflachenen蚀。我的意思是，我的意思是我的意思是我的意思是我的意思。安方的风，金属学，金属学，金属学，金属学。如果“扩散机制”是由“扩散机制”决定的，那么“扩散机制”就是由“扩散机制”决定的。[3] [3] [3] [3] [3] [3] [3] [3] [3] [4] [3]
{"title":"Surface Corrosion of Mg-Containing Al-Based Alloys","authors":"J. Kojnok, A. Szász, L. Kertész, A. S. Sulakov","doi":"10.1002/PSSA.2210720112","DOIUrl":"https://doi.org/10.1002/PSSA.2210720112","url":null,"abstract":"During heat-treatment of Mg-containing Al-based alloys, the Mg concentration changes considerably. As compared to the pure material significant surface corrosion is observed for the air heattreated alloy. In vacuum heat treatment the Mg content of the surface layer increases considerably. Initially metallic Mg is detected on the surface which, however, becomes oxidized later on. On the basis of the investigations one has to assume that the process is not a simple diffusion mechanism only. A new conception is formed for the process according to which it is controlled by the breaking up of the Al2O3 barrier layer by Mg. \u0000 \u0000 \u0000 \u0000Wahrend einer Warmebehandlung von Mg enthaltenden Al-Legierungen andert sich die Mg-Konzentration betrachtlich. Im Vergleich zu dem reinen Material wird eine signifikante Oberflachenkorrosion fur in Luft getemperte Legierungen beobachtet. Bei Vakuumtemperung steigt der Mg-Gehalt der Oberflachenschicht betrachtlich an. Anfangs wird metallisches Mg auf der Oberflache nachgewiesen, das jedoch spater oxidiert wird. Auf der Grundlage der Untersuchungen mus angenommen werden, das der Prozess nicht nur ein einfacher Diffusionsmechanismus ist. Eine neue Vorstellung fur den Prozes wird vorgeschlagen, derzufolge dieser Prozes durch das Aufbrechen der Al2O3-Barrierenschicht durch Mg gesteuert wird.","PeriodicalId":17793,"journal":{"name":"July 16","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1982-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89244861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Influence of Surface Perfection on Photoconductivity in SbSI Single Crystals","authors":"A. Kidawa, R. Witula","doi":"10.1002/PSSA.2210720144","DOIUrl":"https://doi.org/10.1002/PSSA.2210720144","url":null,"abstract":"","PeriodicalId":17793,"journal":{"name":"July 16","volume":"80 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1982-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83894922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
It is shown experimentally that a simple relation exists between the normalized elastic modulus, E/Em, and the normalized electrical conductivity, γ/γm, for sintered metallic materials. A model established originally to describe the change in electrical conductivity of sintered materials with porosity is extended to include the elastic modulus. This model is based essentially on the concept of the number of contacts between powder particles. Nous avons constate experimentalement qu'il existe une relation simple entre le module d'elasticite relatif, E/Em, et la conductivite electrique relative, γ/γm, pour les materiaux metalliques frittes. Un modele theorique precedemment etabli pour decrire l'evolution de la conductivite electrique des materiaux frittes a ete etendu au module d'elasticite. Ce modele est essentiellement base sur la notion de nombre de contacts entre les particules de poudre.
{"title":"Model to Describe the Elastic Modulus of Sintered Materials","authors":"J. Jernot, M. Coster, J. Chermant","doi":"10.1002/PSSA.2210720133","DOIUrl":"https://doi.org/10.1002/PSSA.2210720133","url":null,"abstract":"It is shown experimentally that a simple relation exists between the normalized elastic modulus, E/Em, and the normalized electrical conductivity, γ/γm, for sintered metallic materials. A model established originally to describe the change in electrical conductivity of sintered materials with porosity is extended to include the elastic modulus. This model is based essentially on the concept of the number of contacts between powder particles. \u0000 \u0000 \u0000 \u0000Nous avons constate experimentalement qu'il existe une relation simple entre le module d'elasticite relatif, E/Em, et la conductivite electrique relative, γ/γm, pour les materiaux metalliques frittes. Un modele theorique precedemment etabli pour decrire l'evolution de la conductivite electrique des materiaux frittes a ete etendu au module d'elasticite. Ce modele est essentiellement base sur la notion de nombre de contacts entre les particules de poudre.","PeriodicalId":17793,"journal":{"name":"July 16","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1982-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83060695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Creep of an iron based glassy alloy (FeBSiC) is studied: both aspects (viscoelastic and viscoplastic) of deformation, the relation between strain rate and stress, and the effect of structural relaxation are precised. A model of homogeneous deformation of metallic glasses near Tg, able to take all the experimental features into account, is proposed. Following such a model, the plastic deformation would be principally dependent on recovery processes associated to structural relaxation. Le fluage d'un alliage vitreux FeBSiC a ete etudie: le caractere a la fois viscoelastique et viscoplastique de la deformation, la relation entre vitesse de deformation et contrainte appliquee et, enfin, l'effet de la relaxation structurale ont ete precises. Apres avoir discute certains hypotheses physiques, un modele de deformation homogene pouvant rendre compte du comportement des verres metalliques vers Tg, est propose. Selon ce modele, la deformation plastique, serait essentiellement commandee par des processus de restauration associes a la relaxation structurale.
{"title":"Homogeneous Flow in Metallic Glasses","authors":"J. Pérez, F. Fouquet, Y. He","doi":"10.1002/PSSA.2210720129","DOIUrl":"https://doi.org/10.1002/PSSA.2210720129","url":null,"abstract":"Creep of an iron based glassy alloy (FeBSiC) is studied: both aspects (viscoelastic and viscoplastic) of deformation, the relation between strain rate and stress, and the effect of structural relaxation are precised. A model of homogeneous deformation of metallic glasses near Tg, able to take all the experimental features into account, is proposed. Following such a model, the plastic deformation would be principally dependent on recovery processes associated to structural relaxation. \u0000 \u0000 \u0000 \u0000Le fluage d'un alliage vitreux FeBSiC a ete etudie: le caractere a la fois viscoelastique et viscoplastique de la deformation, la relation entre vitesse de deformation et contrainte appliquee et, enfin, l'effet de la relaxation structurale ont ete precises. Apres avoir discute certains hypotheses physiques, un modele de deformation homogene pouvant rendre compte du comportement des verres metalliques vers Tg, est propose. Selon ce modele, la deformation plastique, serait essentiellement commandee par des processus de restauration associes a la relaxation structurale.","PeriodicalId":17793,"journal":{"name":"July 16","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1982-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90342578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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