发布求助
文献互助 智能选刊 最新文献

Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy最新文献

筛选
英文 中文
Numerical Solution of the Born-Green Equation for the Pair Potential 配对势的Born-Green方程的数值解
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1971-09-01 DOI: 10.1002/PSSB.2220470125
Y. Waseda, K. Suzuki
{"title":"Numerical Solution of the Born-Green Equation for the Pair Potential","authors":"Y. Waseda, K. Suzuki","doi":"10.1002/PSSB.2220470125","DOIUrl":"https://doi.org/10.1002/PSSB.2220470125","url":null,"abstract":"To derive the pair potential from observed structural data the Born-Green equation has been numerically solved by a linearized simultaneous equation method without any initial function. Liquid Cs has a long-range oscillatory potential, whereas liquid Ar has a Lennard-Jones type potential. Problems such as truncating the infinite integral at a finite upper value in computing the pair potential have been discussed by means of numerical analysis. \u0000 \u0000 \u0000 \u0000Zur zahlenmasigen Berechnung des Paarpotentials aus gemessenen strukturellen Daten wird die Born-Greensche Gleichung unter Verwendung einer linearisierten algebraischen Gleichung ohne Anfangswertfunktion gelost. Flussiges Cs hat ein oszillierendes Potential groser Reichweite, flussiges Ar dagegen ein Potential vom Lennard-Jones-Typ. Das Problem, das der unendliche Integrationsbereich bei der Berechnung des Paarpotentials bei einem bestimmten oberen Wert abgeschnitten werden mus, wird mit Hilfe numerischer Analyse eingehend diskutiert.","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"62 1","pages":"201"},"PeriodicalIF":0.0,"publicationDate":"1971-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81074962","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}
引用次数: 19
Theory of the Snoek Effect in Ternary B.C.C. Alloys : III Hydrostatic Relaxation 三元B.C.C.合金的Snoek效应理论:III流体静力弛豫
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1971-07-01 DOI: 10.1080/14786437108217028
M. Koiwa
{"title":"Theory of the Snoek Effect in Ternary B.C.C. Alloys : III Hydrostatic Relaxation","authors":"M. Koiwa","doi":"10.1080/14786437108217028","DOIUrl":"https://doi.org/10.1080/14786437108217028","url":null,"abstract":"Abstract Interstitial atoms in ternary b.c.c. alloys exhibit hydrostatic relaxation, if an applied stress has a dilatational stress component. The effect is absent in binary alloys. Hydrostatic relaxation, in contrast to orientation relaxation effect, involves long-range diffusion; in order to understand various aspects of the process, calculations are made for imaginary lattices. Internal friction curves are computed for different solute concentrations in a real three-dimensional lattice. The height and the temperature of the peak are compared for hydrostatic relaxation and orientation relaxation.","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"51 1","pages":"198-198"},"PeriodicalIF":0.0,"publicationDate":"1971-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77914388","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}
引用次数: 20
Theory of the Snoek Effect in Ternary B.C.C. Alloys : I. General Theory 三元B.C.C.合金的Snoek效应理论:1 .一般理论
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1971-07-01 DOI: 10.1080/14786437108216426
M. Koiwa
{"title":"Theory of the Snoek Effect in Ternary B.C.C. Alloys : I. General Theory","authors":"M. Koiwa","doi":"10.1080/14786437108216426","DOIUrl":"https://doi.org/10.1080/14786437108216426","url":null,"abstract":"","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"14 1","pages":"196"},"PeriodicalIF":0.0,"publicationDate":"1971-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85221005","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}
引用次数: 59
A Portevin-Le Chatelier Effect expected from Solute Atmosphere Dragging 溶质大气拖拽预测的波特文-勒夏特列效应
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1971-06-01 DOI: 10.1080/14786437108217007
H. Yoshinaga, S. Morozumi
{"title":"A Portevin-Le Chatelier Effect expected from Solute Atmosphere Dragging","authors":"H. Yoshinaga, S. Morozumi","doi":"10.1080/14786437108217007","DOIUrl":"https://doi.org/10.1080/14786437108217007","url":null,"abstract":"Abstract A solute atmosphere, will be formed round a moving dislocation in a solid solution, when the dislocation velocity is smaller than the critical value for the case of solute atoms interacting hydrostatically with an edge dislocation, where A is a parameter indicating the strength of the interaction, b′ is a distance of the order of the interatomic one, and the other parameters have their usual meanings. There may exist another critical velocity (Cottrell 1953 a), v CH, which corresponds to the maximum drag stress due to the solute atmosphere. In the range of v CH < v < v CL, a moving dislocation will be subjected to a lower dragging stress with higher velocity. A kind of Portevin-Le Chatelier effect is expected from this dynamical instability of plasticity.","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"35 1","pages":"144"},"PeriodicalIF":0.0,"publicationDate":"1971-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85188644","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}
引用次数: 71
The Effect of Solvents on the Adduct Formation of Uranyl Thenoyltrifluoroacetonate with Tributyl Phosphate 溶剂对三氟丙酮铀酰-磷酸三丁酯加合反应的影响
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1971-04-01 DOI: 10.1246/BCSJ.44.1043
K. Akiba, N. Suzuki
{"title":"The Effect of Solvents on the Adduct Formation of Uranyl Thenoyltrifluoroacetonate with Tributyl Phosphate","authors":"K. Akiba, N. Suzuki","doi":"10.1246/BCSJ.44.1043","DOIUrl":"https://doi.org/10.1246/BCSJ.44.1043","url":null,"abstract":"Addition compound formation between uranyl bis-thenoyltrifluoroacetonate (UO2A2) and tributyl phosphate(S) was studied by a partition method, using uranium-237 as the tracer. The formula of the adduct complex was shown to be UO2A2·S. The solvent effect on the adduct formation constant was taken into account in connection with the activity; the activity coefficients of each species in various solutions were calculated from the molar volume and the solubility parameter. The formation constants based on the molar fraction, Kx, in a number of solvents were pre-estimated, employing logKx=7.08 in carbon tetrachloride as a reference. They are in agreement with the observed values. The formation constant in terms of activity was found to be constant logKS°=5.77±0.30. A correlation between the formation constants of the two adducts, UO2A2·S and ZnA2·S, was demonstrated.","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"3 1","pages":"59"},"PeriodicalIF":0.0,"publicationDate":"1971-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82427720","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}
引用次数: 19
Precipitation of Aluminium Nitride during Recrystallization of α-Iron α-铁再结晶过程中氮化铝的析出
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1971-03-01 DOI: 10.2355/TETSUTOHAGANE1955.57.3_566
T. Ototani, Yasuji Kataura, T. Fukuda
{"title":"Precipitation of Aluminium Nitride during Recrystallization of α-Iron","authors":"T. Ototani, Yasuji Kataura, T. Fukuda","doi":"10.2355/TETSUTOHAGANE1955.57.3_566","DOIUrl":"https://doi.org/10.2355/TETSUTOHAGANE1955.57.3_566","url":null,"abstract":"An investigation has beell made 011 the preci/Jitatioll oj A 1 N in vaCllUIII melted iron wires containing 0.003, 0.036, and 0.012 wtO ° A I, solutiontreated at 1 200\"e, cold-reduced to 10°o, and isothermally annealed in the range 500' to 100oe . The behaviour oj A I N in a-iron during annealing was JoLLowed by low frequency internal Jriction measurement . By separating the observed Snoek peaks ill to those oj carbon and nitrogen, the amounts oj carbon and nitrogen dissolved in solution were determined. The results obtained were summarized as JoLLows : (I ) In Fe0 .003 wt O,o A I, Ilitrided or carburized prior to the solutiontreatment, the amount oj dissolved nitrogen u:as increased during isothemial anllealing at 600 0 e aJter cold reductioll, whereas the amoullt q! dissolved carbon decreased to the solubility limil. (2) Some difference was seen in the IJrocess oj AIN precil)itatioll during isothermal annealing between Fc0.036 wt°;\" A I-O.006 wt 0\" 1':, in which the A I N IJarticies were completely dissolved by a solutioll-treatment at 1 200 ' e, and FeO.012 wt % AIO.028 wt O oN, in which some oj the AIN j)articies remained undissolved. AIN precipitation ill both cases occurred during the recovery and in the early stage oj recrystaLLization at 600' e, and the reClystaLLization was retarded. (3) 111 Fc0.012 wt% AlO.028 wt%N annealed at 100De, the recrystaLLization was comlJleted bifore A I N preci/Jitation started. Hou'ever, a preheat-treatment oj Jor 20 hr at soooe given l;rior to 100ee allllealillg did significalltly affect the recrystaLLization l;rocess by promoting A I N Im cipitation and decreasing the recrystaLLi:::atioll rate .","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"47 1","pages":"220"},"PeriodicalIF":0.0,"publicationDate":"1971-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84825661","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}
引用次数: 3
The Crystal Structure and Nonstoichiometry of Rare Earth Oxyfluoride 稀土氟化氧的晶体结构和非化学计量学研究
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1971-03-01 DOI: 10.1246/BCSJ.44.643
K. Niihara, S. Yajima
{"title":"The Crystal Structure and Nonstoichiometry of Rare Earth Oxyfluoride","authors":"K. Niihara, S. Yajima","doi":"10.1246/BCSJ.44.643","DOIUrl":"https://doi.org/10.1246/BCSJ.44.643","url":null,"abstract":"Oxyfluoride phases for the rare earth Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Y have been prepared by heating a mixture of lanthanon fluorides, LnF3, and lanthanon oxides, Ln2O3. Three phases were ...","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"9 1","pages":"218"},"PeriodicalIF":0.0,"publicationDate":"1971-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79293543","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}
引用次数: 42
The Chemistry of Protactinium. IX : A Study of the Solvent Extraction of Protactinium (V) from a Perchloric Acid Solution Using Di (2-ethylhexyl) phosphoric Acid as the Extractant 镤的化学性质。九:以二(2-乙基己基)磷酸为萃取剂从高氯酸溶液中萃取镤(V)的研究
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1971-01-01 DOI: 10.1246/BCSJ.44.1305
T. Mitsugashira
{"title":"The Chemistry of Protactinium. IX : A Study of the Solvent Extraction of Protactinium (V) from a Perchloric Acid Solution Using Di (2-ethylhexyl) phosphoric Acid as the Extractant","authors":"T. Mitsugashira","doi":"10.1246/BCSJ.44.1305","DOIUrl":"https://doi.org/10.1246/BCSJ.44.1305","url":null,"abstract":"Studies of the chemical behavior of protactinium(V) in a perchloric acid solution were carried out by the HDEHP-benzene extraction method. When the protactinium concentration was lower than 10−7 M, the extraction reaction was considered to proceed as:PaO(OH)2+aq.+ 3(HA)2 org.= PaOp(OH)qA5−2p−q(HA)2p+q+1 org.+ 2H+aq.+ (2–p–q)H2Oaq.where p=1, q=0 or 1, and p=2, q=0andPa(OH)32+aq.+ 3(HA)2 org.= PaOp(OH)qA5−2p−q(HA)2p+q+1 org.+ 2H+aq.+ (3–p-q)H2Oaq.where p=0, q=0, 1, 2, or 3; p=1, q=0 or 1 and p=2, q=0.","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"12 1","pages":"135"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81503973","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}
引用次数: 3
Effect of the Interstitial Cluster on the Lattice Expansion of Irradiated Metals 间隙团簇对辐照金属晶格膨胀的影响
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1971-01-01 DOI: 10.2320/MATERTRANS1960.12.192
R. Hanada
{"title":"Effect of the Interstitial Cluster on the Lattice Expansion of Irradiated Metals","authors":"R. Hanada","doi":"10.2320/MATERTRANS1960.12.192","DOIUrl":"https://doi.org/10.2320/MATERTRANS1960.12.192","url":null,"abstract":"","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"11 3 1","pages":"136"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82834116","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}
引用次数: 6
Transformation of Retained Austenite and Observation of Cracks under Low-Cycle Fatigue Testing 低周疲劳试验下残余奥氏体的转变及裂纹观察
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy Pub Date : 1971-01-01 DOI: 10.2472/JSMS.20.1285
Y. Imai, S. Kumagai
{"title":"Transformation of Retained Austenite and Observation of Cracks under Low-Cycle Fatigue Testing","authors":"Y. Imai, S. Kumagai","doi":"10.2472/JSMS.20.1285","DOIUrl":"https://doi.org/10.2472/JSMS.20.1285","url":null,"abstract":"","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"85 1","pages":"1-15"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74592578","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}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信