Materials Transactions Jim最新文献_第9页

Anisotropy in Strength of a TiAl Base Polycrystal with Unidirectionally Oriented Lamellae 具有单向取向薄片的TiAl基多晶强度的各向异性

Materials Transactions Jim Pub Date : 2000-10-20 DOI: 10.2320/MATERTRANS1989.41.1287

Tetsuya Suzuki, T. Fukuyama, M. Tada, Y. Tomota, T. Tsujimoto

引用次数: 2

Soft Magnetic Properties in Nano-scale Inhomogeneous Ni3Mn Alloys 纳米非均匀Ni3Mn合金的软磁性能

Materials Transactions Jim Pub Date : 2000-09-20 DOI: 10.2320/MATERTRANS1989.41.1150

T. Okazaki, K. Sawaguchi, M. Homma

引用次数: 4

Effect of Metal Released from Ti Alloy Wear Powder on Cell Viability 钛合金磨损粉末释放金属对细胞活力的影响

Materials Transactions Jim Pub Date : 2000-09-20 DOI: 10.2320/MATERTRANS1989.41.1247

Y. Okazaki, E. Nishimura

{"title":"Effect of Metal Released from Ti Alloy Wear Powder on Cell Viability","authors":"Y. Okazaki, E. Nishimura","doi":"10.2320/MATERTRANS1989.41.1247","DOIUrl":"https://doi.org/10.2320/MATERTRANS1989.41.1247","url":null,"abstract":"Ti alloy disks were separately worn with pins of the same alloy or apatite ceramics in Eagle's medium. Wear powders sterilized in either a heating oven or ethanol were separately added to culture media. The effect of the Ti wear powder sterilized in a heating oven on cell viability was smaller than that of powder sterilized in ethanol. The effect of wear powder generated with the apatite ceramic pin on cell viability was also larger than that generated by the alloy pin. The relative growth ratios of L929 and MC3T3-El cells for Ti-6Al-4V alloy wear powder sterilized in ethanol decreased from a smaller amount than those of the Ti-15Zr-4Nb-4Ta and Ti-15Sn-4Nb-2Ta alloy wear powders. The concentration of V released from the wear powder into the medium increased moderately with increasing wear powder. This effect was approximately in agreement with the results estimated from medium extraction with high-purity V particles. For the Ti-15Zr-4Nb-4Ta and Ti-15Sn-4Nb-2Ta alloy wear powders sterilized in ethanol, the maximum Ti concentration released from the wear powder was approximately in agreement with the results obtained with high-purity Ti particles. On the contrary, for Zr, Nb, Ta and Sn, the maximum metal concentrations released from the wear powders were lower than those obtained with high-purity metal particles.","PeriodicalId":18264,"journal":{"name":"Materials Transactions Jim","volume":"1 1","pages":"1247-1255"},"PeriodicalIF":0.0,"publicationDate":"2000-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89562676","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: 32

Ion Exchange Synthesis and Structure of New Delafossite-Type CuInO2 新型delafosite型CuInO2的离子交换合成及结构

Materials Transactions Jim Pub Date : 2000-09-20 DOI: 10.2320/MATERTRANS1989.41.1111

M. Shimode, Y. Hayashi, M. Sasaki, K. Mukaida

引用次数: 11

Ultra Thin TiN Films Prepared by an Advanced Ion-Plating Method 先进离子镀法制备超薄锡薄膜

Materials Transactions Jim Pub Date : 2000-09-20 DOI: 10.2320/MATERTRANS1989.41.1161

K. Uetani, H. Kajiyama, T. Yamaguchi, K. Nose, K. Onisawa, T. Minemura

{"title":"Ultra Thin TiN Films Prepared by an Advanced Ion-Plating Method","authors":"K. Uetani, H. Kajiyama, T. Yamaguchi, K. Nose, K. Onisawa, T. Minemura","doi":"10.2320/MATERTRANS1989.41.1161","DOIUrl":"https://doi.org/10.2320/MATERTRANS1989.41.1161","url":null,"abstract":"We have prepared ultra thin TiN films using an advanced ion-plating (AIP) apparatus developed by ShinMaywa Industries. In AIP, RF and/or DC bias voltages are applied to the substrate holder and then a capacitor is formed between the substrate holder and the chamber. Eventually, it becomes easy to sustain a stable plasma at Ar pressures at as low as 10 -3 Pa. We clarified the characteristics of the AIP method through the deposition of ultra thin TiN films and examined new application areas for TiN thin films. TiN thin films (thickness: 5 and 25 nni) were prepared by AIP and also by DC sputtering without substrate heating. Then we measured the resistivity and observed the nanometer scale surface morphology of the thin films. Although the initial resistivities of both films were close (200 x 10 -8 Ω.m), the resistivity of the sputtered film ruse to twice that of the AIP film 50 hours later. Atomic force microscopy measurements showed flat, fine grains spread uniformly over the surface in the AIP film, while many isolated crystal islands were formed in the sputtered film. Our findings indicated that the AIP films have a potential use as wiring material. We thought that the AIP deposition enhances surface migration more than sputtering does as a result of efficient excitation of impinging TiN clusters in the Ar plasma region.","PeriodicalId":18264,"journal":{"name":"Materials Transactions Jim","volume":"1 1","pages":"1161-1163"},"PeriodicalIF":0.0,"publicationDate":"2000-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90342545","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: 7

Microstructural Evolution of Fe-Cr-W Model Alloys During Fe^+ Ion Irradiation Fe- cr - w模型合金在Fe^+离子辐照下的显微组织演变

Materials Transactions Jim Pub Date : 2000-09-20 DOI: 10.2320/MATERTRANS1989.41.1176

E. Wakai, A. Hishinuma, H. Abe, S. Takaki, K. Abiko

{"title":"Microstructural Evolution of Fe-Cr-W Model Alloys During Fe^+ Ion Irradiation","authors":"E. Wakai, A. Hishinuma, H. Abe, S. Takaki, K. Abiko","doi":"10.2320/MATERTRANS1989.41.1176","DOIUrl":"https://doi.org/10.2320/MATERTRANS1989.41.1176","url":null,"abstract":"The effect of radiation on microstructural evolution and phase transformation in Fe-50Cr-5W and Fe-50Cr-8W model alloys was examined. The 300keV Fe + ion irradiation was performed at temperatures of 550, 600, 670, and 700°C at a rate of 1.4 × 10 18 ions/m 2 s for (1.2-1.8) x 10 3 s in a transmission electron microscope (TEM). The damage peak level corresponded to about 190-285 dpa. The peak depth positions of damage and Fe + ion were about 60 and 100 nm, respectively. Dislocation loops were observed in the Fe-50Cr-W alloys up to 700°C. A Laves phase of tens of nanometers in size was formed in the Fe-50Cr-W alloys within a few minutes, but the formation of Laves phase decreased with increasing irradiation temperature. Sigma-phase grains of about 50-100 nm in size and micro-crystallines were observed in the alloys irradiated at 670 and 700°C. However, in the specimen aged at 700°C for 1000 h and the one aged at 700°C for 10 h after 80% CW, only the Laves phase had formed and no sigma phase was observed in the Fe-50Cr-W alloys. These results indicate that Fe + ion irradiation can strongly influence the Laves and sigma phase transformations, and microstructural development, in the Fe-50Cr-W alloys.","PeriodicalId":18264,"journal":{"name":"Materials Transactions Jim","volume":"3 1","pages":"1176-1179"},"PeriodicalIF":0.0,"publicationDate":"2000-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72824204","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 Crystal Orientation on the Magnetic Resonance Properties of M-Type Hexagonal Ferrites 晶体取向对m型六方铁氧体磁共振性能的影响

Materials Transactions Jim Pub Date : 2000-09-20 DOI: 10.2320/MATERTRANS1989.41.1184

H. Takabayashi, Y. Kato, T. Kagotani, D. Book, S. Sugimoto, M. Homma, H. Ota, Y. Houjou

{"title":"Effect of Crystal Orientation on the Magnetic Resonance Properties of M-Type Hexagonal Ferrites","authors":"H. Takabayashi, Y. Kato, T. Kagotani, D. Book, S. Sugimoto, M. Homma, H. Ota, Y. Houjou","doi":"10.2320/MATERTRANS1989.41.1184","DOIUrl":"https://doi.org/10.2320/MATERTRANS1989.41.1184","url":null,"abstract":"This paper describes the effect of crystal orientation on the electromagnetic wave absorption properties of barium M-type (Ba-M) ferrite. in which Fe 3+ was substituted by (Ti 0.5 Mn 0.5 ) 3+ . The BaFe 9 (Ti 0.5 Mn 0.5 ) 3 O 19 sintered samples were prepared by a conventional powder metallurgy technique, in which and the c-axes of the powder particles were aligned in a magnetic field during compaction. After sintering. toroidally shaped samples were formed whose c-axes were aligned at certain angles (θ) to the sample thickness (d), and their microwave absorption properties were investigated in the GHz frequency range. It was found that the maximum values of the complex permeability (μ r = μ' r - jμ r ) increased with decreasing θ. The θ = 0° sample exhibited the highest μ r value, which resulted in the smallest matching thickness (d m ) of 0.57 mm with a reftection loss (R.L.) less than -20 dB at 12.05 GHz. In addition, increasing the sintering time had the effect of increasing μ n r ; reaching a μ n r value of 6.0 after sintering for 100h. As a result, the matching thickness decreased from 0.72 to 0.51 mm which is 30% smaller than for an isotropic sample sintered for 10h. Therefore, it is concluded that the degree of crystallographic alignment ol the sample and the sintering time used are both important factors in obtaining good electromagnetic wave absorption properties with a smaller matching thickness, in Ba M-type microwave absorbers.","PeriodicalId":18264,"journal":{"name":"Materials Transactions Jim","volume":"55 1","pages":"1184-1187"},"PeriodicalIF":0.0,"publicationDate":"2000-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85640465","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: 5

Mössbauer spectroscopic study of rust formed on a weathering steel exposed for 15 years in an industrial environment Mössbauer在工业环境中暴露15年的耐候钢上形成的锈的光谱研究

Materials Transactions Jim Pub Date : 2000-09-20 DOI: 10.2320/MATERTRANS1989.41.1208

T. Kamimura, S. Nasu

引用次数: 25

Effect of Sn Content on the Electrical Properties and Thermal Conductivity of Pb1−xSnxTe Sn含量对Pb1−xSnxTe电性能和导热性的影响

Materials Transactions Jim Pub Date : 2000-09-20 DOI: 10.2320/MATERTRANS1989.41.1196

M. Orihashi, Y. Noda, Lidong Chen, T. Hirai

引用次数: 16

The Influence of Magnetron-sputtered SiO2 Coatings on the Cyclic Oxidation Behavior of γ-TiAl Alloys 磁控溅射SiO2涂层对γ-TiAl合金循环氧化行为的影响

Materials Transactions Jim Pub Date : 2000-09-20 DOI: 10.2320/MATERTRANS1989.41.1118

Yao-Can Zhu, Y. Zhang, X. Li, K. Fujita, N. Iwamoto

引用次数: 16