Pub Date : 1970-01-01DOI: 10.1002/PSSB.19700390235
Y. Waseda, Kyoichi Suzuki
The structure of iron in the liquid state has been studied by neutron diffraction at 1620 °C. After calculation of the interference function (Fourier analysis), the atomic radial distribution function was evaluated from which interatomic distance and coordination number were obtained. The value of the magnetic moment of iron in the liquid state which was derived from the correction for the paramagnetic neutron scattering was 1.2 μB. Die Struktur von Eisen im flussigen Zustand wurde durch Neutronenbeugung bei 1620 °C untersucht. Nach der schon mehrfach dargestellten Methode (Fourier-Analyse) wurde die Interferenzfunktion in eine radiale Atomverteilungsfunktion transformiert, aus der sich der mittlere Abstand nachster Atome und die Koordinationszahl ergeben. Aus der Korrektur der paramagnetischen Neutronenstreuung ergibt sich der Wert des magnetischen Moments von Eisen im flussigen Zustand zu 1,2 μB.
类似的》铁在liquid state有一套黑人studied中子diffraction同行在1620°C .原子放射分配分析之后的干扰分析现在价值of The magnetic的铁在liquid state的什么derived笛子的correction for The paramagnetic纽琼scattering 1.2μB .什么结构是由铁在flussigen状态被Neutronenbeugung 1620°C .调查按照上面被表述的(傅立叶分析)，干涉函数被转换成常规的原子分配功能，其中间距离产生原子，以及协调数字。从修正paramagnetischen Neutronenstreuung铁质磁时刻的价值就会紧随其后flussigen状态120μB .
{"title":"Atomic Distribution and Magnetic Moment in Liquid Iron by Neutron Diffraction","authors":"Y. Waseda, Kyoichi Suzuki","doi":"10.1002/PSSB.19700390235","DOIUrl":"https://doi.org/10.1002/PSSB.19700390235","url":null,"abstract":"The structure of iron in the liquid state has been studied by neutron diffraction at 1620 °C. After calculation of the interference function (Fourier analysis), the atomic radial distribution function was evaluated from which interatomic distance and coordination number were obtained. The value of the magnetic moment of iron in the liquid state which was derived from the correction for the paramagnetic neutron scattering was 1.2 μB. Die Struktur von Eisen im flussigen Zustand wurde durch Neutronenbeugung bei 1620 °C untersucht. Nach der schon mehrfach dargestellten Methode (Fourier-Analyse) wurde die Interferenzfunktion in eine radiale Atomverteilungsfunktion transformiert, aus der sich der mittlere Abstand nachster Atome und die Koordinationszahl ergeben. Aus der Korrektur der paramagnetischen Neutronenstreuung ergibt sich der Wert des magnetischen Moments von Eisen im flussigen Zustand zu 1,2 μB.","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"9 1","pages":"181"},"PeriodicalIF":0.0,"publicationDate":"1970-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88805067","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}
Pub Date : 1970-01-01DOI: 10.2320/JINSTMET1952.35.1_16
M. Hosoya
{"title":"Rapid Determination of Hydrogen in Metals by the Argon Gas Carrier Fusion-Gas Chromatographic Method","authors":"M. Hosoya","doi":"10.2320/JINSTMET1952.35.1_16","DOIUrl":"https://doi.org/10.2320/JINSTMET1952.35.1_16","url":null,"abstract":"","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"25 1","pages":"183-191"},"PeriodicalIF":0.0,"publicationDate":"1970-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83465870","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}
Pub Date : 1970-01-01DOI: 10.2320/JINSTMET1952.34.4_417
Y. Tanji, Y. Shirakawa, H. Moriya
{"title":"Young's Modulus, Shear Modulus and Compressibility of Fe-Ni(fcc) Alloys","authors":"Y. Tanji, Y. Shirakawa, H. Moriya","doi":"10.2320/JINSTMET1952.34.4_417","DOIUrl":"https://doi.org/10.2320/JINSTMET1952.34.4_417","url":null,"abstract":"","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"20 1","pages":"84-92"},"PeriodicalIF":0.0,"publicationDate":"1970-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84915132","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}
Pub Date : 1970-01-01DOI: 10.1002/PSSB.19700400119
Y. Waseda, K. Suzuki
X-ray diffraction patterns have been obtained from liquid mercury at −35, 15, and 80 °C. The structure factors obtained are nearly independent on temperature and applied to a discussion of the electrical resistivity using Ziman's [16] theory and the pseudopotential (Animalu and Heine [19] or Evans et al. [18]). Rontgenbeugungsbilder wurden von flussigem Quecksilber bei −35, 15 und 80 °C beobachtet. Die gefundenen Strukturfaktoren sind nahezu unabhangig von der Temperatur und wurden fur eine Diskussion des elektrischen Widerstandes unter Zugrundelegung der Theorie von Ziman [16] und des Pseudopotentials (Animalu und Heine [19] oder Evans et al. [18]) verwendet.
{"title":"Temperature Dependence of the Structure of Liquid Mercury","authors":"Y. Waseda, K. Suzuki","doi":"10.1002/PSSB.19700400119","DOIUrl":"https://doi.org/10.1002/PSSB.19700400119","url":null,"abstract":"X-ray diffraction patterns have been obtained from liquid mercury at −35, 15, and 80 °C. The structure factors obtained are nearly independent on temperature and applied to a discussion of the electrical resistivity using Ziman's [16] theory and the pseudopotential (Animalu and Heine [19] or Evans et al. [18]). Rontgenbeugungsbilder wurden von flussigem Quecksilber bei −35, 15 und 80 °C beobachtet. Die gefundenen Strukturfaktoren sind nahezu unabhangig von der Temperatur und wurden fur eine Diskussion des elektrischen Widerstandes unter Zugrundelegung der Theorie von Ziman [16] und des Pseudopotentials (Animalu und Heine [19] oder Evans et al. [18]) verwendet.","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"20 1","pages":"182"},"PeriodicalIF":0.0,"publicationDate":"1970-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78525224","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}
Pub Date : 1970-01-01DOI: 10.2320/JINSTMET1952.34.3_286
M. Izumiyama, M. Tsuchiya, Y. Imai
{"title":"Effect of Cooling Rate on A_3 Transformation Temperatures of Iron and Iron-Nickel Binary Alloys","authors":"M. Izumiyama, M. Tsuchiya, Y. Imai","doi":"10.2320/JINSTMET1952.34.3_286","DOIUrl":"https://doi.org/10.2320/JINSTMET1952.34.3_286","url":null,"abstract":"","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"1 1","pages":"93-104"},"PeriodicalIF":0.0,"publicationDate":"1970-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77712047","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}
Pub Date : 1969-06-01DOI: 10.2355/TETSUTOHAGANE1955.55.7_550
R. Sakagami, Chitoshi Kawasaki, I. Suzuki, Keiji Sato
Synopsis: The mechanism on the deoxidation of liquid iron with Si was studied on the basis of the various facts obtained by the experiments A, B, and C. Experiment A; An investigation was made on the change of the oxygen content in liquid iron and the shape and the size distribution of the inclusion, after addition of metallic Si. Experiment B; The process of growth and the composition of the deoxidation products were studied , after the prompt and homogeneous dissolution of deoxidizer Si or Si-Al. Experiment C; The mechanism of dissolution of oxygen from the SiO2 crucible into liquid iron was studied. The results obtained were summarized as follows. 1) The formation of SiO2 is not completed immediately after addition of Si and consequently the supersaturation in liquid iron occurs until the equilibrium is reached. 2) It was concluded that the growth of the oxide particle or the deoxidation reaction was not controlled by the diffusion of the solute atom, but the reaction rate at the particle surface, and in general the local equilibrium was not maintained there even at steelmaking temperature. 3) The ratio of the rate constant for the reaction Si+2OSiO2, 2Al+3O2Al2O3 was estimated by means of the composition of the products obtained by the Si-Al deoxidation in the experiment B. The ratio was constant in a wide range of the concentration of aluminium, silicon and oxygen in liquid iron. 4) In the experiment A, the greater part of the primary inclusion floats out rapidly and the total oxygen agrees nearly with the dissolved oxygen 5 minutes after addition of silicon. 5) The mechanism on the formation of the inclusion during solidification was discussed from the point of view of nucleation and growth of the oxide particle. (Received Dec. 27, 1968)
{"title":"Deoxidation of Liquid Iron with Silicon","authors":"R. Sakagami, Chitoshi Kawasaki, I. Suzuki, Keiji Sato","doi":"10.2355/TETSUTOHAGANE1955.55.7_550","DOIUrl":"https://doi.org/10.2355/TETSUTOHAGANE1955.55.7_550","url":null,"abstract":"Synopsis: The mechanism on the deoxidation of liquid iron with Si was studied on the basis of the various facts obtained by the experiments A, B, and C. Experiment A; An investigation was made on the change of the oxygen content in liquid iron and the shape and the size distribution of the inclusion, after addition of metallic Si. Experiment B; The process of growth and the composition of the deoxidation products were studied , after the prompt and homogeneous dissolution of deoxidizer Si or Si-Al. Experiment C; The mechanism of dissolution of oxygen from the SiO2 crucible into liquid iron was studied. The results obtained were summarized as follows. 1) The formation of SiO2 is not completed immediately after addition of Si and consequently the supersaturation in liquid iron occurs until the equilibrium is reached. 2) It was concluded that the growth of the oxide particle or the deoxidation reaction was not controlled by the diffusion of the solute atom, but the reaction rate at the particle surface, and in general the local equilibrium was not maintained there even at steelmaking temperature. 3) The ratio of the rate constant for the reaction Si+2OSiO2, 2Al+3O2Al2O3 was estimated by means of the composition of the products obtained by the Si-Al deoxidation in the experiment B. The ratio was constant in a wide range of the concentration of aluminium, silicon and oxygen in liquid iron. 4) In the experiment A, the greater part of the primary inclusion floats out rapidly and the total oxygen agrees nearly with the dissolved oxygen 5 minutes after addition of silicon. 5) The mechanism on the formation of the inclusion during solidification was discussed from the point of view of nucleation and growth of the oxide particle. (Received Dec. 27, 1968)","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"32 5 1","pages":"211-249"},"PeriodicalIF":0.0,"publicationDate":"1969-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90222390","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 small plasma jet burner for direct excitation of metal solid samples was developed. The optimum operating conditions are as follows; d.c. arc current about 15 A, flow rate of nitrogen tangentially introduced gas about 1.5–2 l/min, and that of atomizer gas about 3.5–4 l/min. The limit of detection of some elements were determined with solution samples. Satisfactory-calibration curves were also obtained for analyses of alloying elements in some solid form alloys.
{"title":"Emission Spectrographic Analysis of Metal Solid Samples with Plasma Jet Flame. I. : Application of Nitrogen Plasma Flame","authors":"K. Hirokawa, H. Gotō","doi":"10.1246/BCSJ.42.693","DOIUrl":"https://doi.org/10.1246/BCSJ.42.693","url":null,"abstract":"A small plasma jet burner for direct excitation of metal solid samples was developed. The optimum operating conditions are as follows; d.c. arc current about 15 A, flow rate of nitrogen tangentially introduced gas about 1.5–2 l/min, and that of atomizer gas about 3.5–4 l/min. The limit of detection of some elements were determined with solution samples. Satisfactory-calibration curves were also obtained for analyses of alloying elements in some solid form alloys.","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"92 1","pages":"176"},"PeriodicalIF":0.0,"publicationDate":"1969-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89744370","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}
Pub Date : 1969-01-01DOI: 10.2320/JINSTMET1952.33.12_1354
Y. Tanji, Y. Shirakawa, H. Moriya
{"title":"Variation of Internal Friction with Magnetization in Nickel","authors":"Y. Tanji, Y. Shirakawa, H. Moriya","doi":"10.2320/JINSTMET1952.33.12_1354","DOIUrl":"https://doi.org/10.2320/JINSTMET1952.33.12_1354","url":null,"abstract":"","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"3 1","pages":"250-259"},"PeriodicalIF":0.0,"publicationDate":"1969-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76727621","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}
For the purpose of understanding the behavior of protactinium in a perchloric acid solution toward TTA-benzene extraction, the effect of di-isobutyl carbinol (DIBC) on the extraction was studied. A marked synergism was observed. As a result of a detailed investigation of such things as the effects of the TTA concentration, of the DIBC concentration, and of the acidity, the unified mechanism of TTA-benzene and TTA-DIBC-benzene extraction is considered to be a series of successive reactions, (1) through (4), with an increase in the DIBC concentration:PaOm(OH)n5−2m−n+4HT=Pa(OH)2T3(HT)+(m+n−2)H2O+(5−2m−n)H+ Pa(OH)2T3(HT)→PaOT3(HT) (slow, irreversible) (1)PaOm(OH)n5−2m−n+4HT=Pa(OH)2T3(HT)B+(m+n−2)H2O+(5−2m−n)H+ Pa(OH)2T3(HT)B→PaOT3(HT)B (slow, irreversible) (2)PaOm(OH)n2−2m−n+3HT+B=Pa(OH)2T3B+(m+n−2)H2O+(5−2m−n)H+ Pa(OH)2T3B→PaOT3B (slow, irreversible) (3)PaOm(OH)n5−2m−n+3HT+2B=Pa(OH)2T3B2+(m+n−2)H2O+(5−2m−n)H+ Pa(OH)2T3B2→PaOT3B2 (slow, irreversible) (4)The slow, irreversible reaction in each step indicates t...
{"title":"The Chemistry of Protactinium. VIII. : Synergistic Effect of Di-isobutyl Carbinol on the Pa(V)-TTA-Benzene Solvent Extraction System","authors":"Shin Suzuki, Y. Inoue","doi":"10.1246/BCSJ.42.2523","DOIUrl":"https://doi.org/10.1246/BCSJ.42.2523","url":null,"abstract":"For the purpose of understanding the behavior of protactinium in a perchloric acid solution toward TTA-benzene extraction, the effect of di-isobutyl carbinol (DIBC) on the extraction was studied. A marked synergism was observed. As a result of a detailed investigation of such things as the effects of the TTA concentration, of the DIBC concentration, and of the acidity, the unified mechanism of TTA-benzene and TTA-DIBC-benzene extraction is considered to be a series of successive reactions, (1) through (4), with an increase in the DIBC concentration:PaOm(OH)n5−2m−n+4HT=Pa(OH)2T3(HT)+(m+n−2)H2O+(5−2m−n)H+ Pa(OH)2T3(HT)→PaOT3(HT) (slow, irreversible) (1)PaOm(OH)n5−2m−n+4HT=Pa(OH)2T3(HT)B+(m+n−2)H2O+(5−2m−n)H+ Pa(OH)2T3(HT)B→PaOT3(HT)B (slow, irreversible) (2)PaOm(OH)n2−2m−n+3HT+B=Pa(OH)2T3B+(m+n−2)H2O+(5−2m−n)H+ Pa(OH)2T3B→PaOT3B (slow, irreversible) (3)PaOm(OH)n5−2m−n+3HT+2B=Pa(OH)2T3B2+(m+n−2)H2O+(5−2m−n)H+ Pa(OH)2T3B2→PaOT3B2 (slow, irreversible) (4)The slow, irreversible reaction in each step indicates t...","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"15 1","pages":"178"},"PeriodicalIF":0.0,"publicationDate":"1969-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75287774","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}
With a view to understand the reasons for the confusion in published works as to the chemical behavior of protactinium (V) in a perchloric acid solution, the effect of the contact time and the stability of the perchloric acid solution of the pentavalent protactinium in the TTA-benzene extraction have been investigated in relation to the methods of preparing the solution. Four sample solutions, prepared by various methods, were used, and definite differences among them were observed. Two of them have been confirmed to be very stable and not to suffer a change in their distribution ratios with the time of standing, while the others are unstable-that is, their distribution ratios decrease with standing, thereby reaching a constant value which agrees with that of the former two. However, the value consistent with that obtained from backward extraction is not this constant value but the value obtained from fresh solutions of the latter type. Protactinium species in the TTA-benzene solution are also not stable,...
{"title":"The Chemistry of Protactinium. VII. : The Stability of Protactinium (V) in Perchloric Acid and TTA-Benzene Solutions","authors":"Shin Suzuki, Y. Inoue","doi":"10.1246/BCSJ.42.1916","DOIUrl":"https://doi.org/10.1246/BCSJ.42.1916","url":null,"abstract":"With a view to understand the reasons for the confusion in published works as to the chemical behavior of protactinium (V) in a perchloric acid solution, the effect of the contact time and the stability of the perchloric acid solution of the pentavalent protactinium in the TTA-benzene extraction have been investigated in relation to the methods of preparing the solution. Four sample solutions, prepared by various methods, were used, and definite differences among them were observed. Two of them have been confirmed to be very stable and not to suffer a change in their distribution ratios with the time of standing, while the others are unstable-that is, their distribution ratios decrease with standing, thereby reaching a constant value which agrees with that of the former two. However, the value consistent with that obtained from backward extraction is not this constant value but the value obtained from fresh solutions of the latter type. Protactinium species in the TTA-benzene solution are also not stable,...","PeriodicalId":21586,"journal":{"name":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy","volume":"22 1","pages":"177"},"PeriodicalIF":0.0,"publicationDate":"1969-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78318931","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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