Materials Literature
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Damping behavior of Fe–16.0~28.0at%Al and Fe–23.0at%Al–2.0at%M (M=Cr, Mn, Co, Ni) in the wide strain amplitude range was examined and the damping mechanism was discussed. In Fe–Al binary single crystals, magneto-mechanical damping caused by irreversible motion of magnetic domain walls took place at low strain amplitud…
ポリケトン(PK)/ポリアミド(PA)ポリマーアロイの耐衝撃性を計装化シャルピー衝撃試験により評価した．アロイ化することにより吸湿状態において耐衝撃性が飛躍的に向上することが明らかとなった．その耐衝撃性の発現機構を理解するためアロイのナノ構造の評価を実施した．TEM 観察から全体像を把握し，結晶構造を X 線広角散乱測定，ラメラ構造を X 線小角散乱測定により評価した．このポリマーアロイは PK リッチ相と PA リッチ相からなる共連続構造を形成していることが明らかとなった．また，いずれかの相にはラメラの三次元ネットワークが形成されていた．このネットワークがポリマーアロイを力学的に補強することが考えられる．また PA 相が吸水する…
The reaction of FeI(2) with two equivalents of AgReO(4) in acetonitrile leads to yellow, crystalline Fe(ReO(4))(2)(CH(3)CN)(3) (1), and the treatment of 1 with four equivalents of CpFe(CO)(2)CN gives orange, crystalline Fe(ReO(4))(2)[CpFe(CO)(2)(CN)](4) (2). Compound 2 can also be prepared in one step by the reaction…
As a circuit breaker for over 84kV, SF6 gas circuit breaker (GCB) has been used for a long time, in virtue of its excellent characteristics as arc extinction and insulating medium. Although, SF6 gas has very high global warming potential (GWP) of 23,900, and it was designated to regulation object in COP3 in Kyoto in 1…
The effect of molybdenum trioxide (MoO3) on the friction and wear of aluminum bronze was studied at the temperature up to 973 K. MoO3 powder supplied to the sliding interface between aluminum bronze and stainless steel reduced friction coefficient and wear of materials at the temperature from 773 to 973 K. Copper-moly…
Article Centroid Evolution Theorem Induced from Fractal Super Fibers or Fractal Super Snowflakes was published on June 1, 2009 in the journal International Journal of Nonlinear Sciences and Numerical Simulation (volume 10, issue 6).
ANSTO has developed a combination of tailored nuclear waste form chemistries coupled with the use of flexible hot-isostatic pressing processing technology to enable the successful incorporation of problematic nuclear wastes into dense, durable monoliths. This combined package also enables the design of waste forms wit…
Abstract In this paper we study the transmission properties of light through generalized Thue-Morse (GTM (m, n)) aperiodic superlattices and obtain the formulae of the transmission coefficients (TCs) analytically at the central wavelength, which are confirmed by numerical simulations. It is found that: (1) all of the…
Hydrogen evolution behavior during tensile deformation and fracture in hydrogen-charged and uncharged carbon steels was investigated using a hydrogen microprint technique (HMT). A tensile testing machine equipped with a mass spectrometer placed in an ultrahigh vacuum (UHV) chamber was used to detect hydrogen evolution…
Raman spectra and the polarization behaviors of molten alkali carbonates coexisting inorganic powder were measured. The deformation and the change of polarization properties by the coexisting with the solid phase are discussed. The symmetry of the band shape of the Raman spectra for CO32− stretching band (ν1) was defo…
The recent trend towards miniaturisation has pushed the development of non-classical continuum mechanics theories intended to explain the behaviour of materials at small scales. In particular, a wide range of observed size dependent phenomena has been experimentally identified. Two issues arise in the numerical treatm…
The study on thermodynamics of ion exchange equilibrium for uni-univalent Cl−/I−, Cl−/Br−, and uni-divalent Cl−/SO 4 2− , Cl−/C2O 4 2− reaction systems was carried out using ion-exchange resin Duolite A-113. The equilibrium constant K was calculated by taking into account the activity coefficient of ions both in solut…
Second harmonic generation (SHG) and propagation loss have been measured on nanocrystallized optical fibers of tellurite-based glass, 15K2O·15Nb2O5·70TeO2. The result of the angular dependence of the SHG intensity is discussed based on the difference in the transmission factor varying with the polarization direction.…
Cu-Sn speculum alloy metallization of a non-conductive epoxy substrate was demonstrated through successive electrochemical processes: (i) electroless Cu deposition on the substrate and (ii) electrochemical alloying of the resulting Cu layer with Sn through a reduction-diffusion method using an ionic liquid bath at 150…
The effects of three-dimensional (3-D) culture and cyclic stretch stimulation on the expression of contractile proteins were investigated in freshly isolated rat aortic smooth muscle cells (FSMC). Primary cells were cultured statically on cell culture dishes (two-dimensional (2-D) culture) or in type I collagen gel ma…
Waste silk fiber is an important by-product in silk industry. In order to perform the efficient recycling of this waste silk resource, the papermaking technology was adopted, and silk/bamboo paper was produced. Beating treatment of fibers and chemical modification of silk fibroin fiber by epoxy reagent were carried ou…
リグニン生分解最終中間物である 2-ピロン-4,6-ジカルボン酸を繰返し単位中に有するポリエステルが，金属やグラッシーカーボンに対して約 30～60 MPa の強力な接着力を示すこと1)を利用して，アセチレンブラック，グラファイト粉末，ミクロファイバー状グラファイト，銅粉末，銀ナノ粒子を混合した導電性コンポジット接着剤を作製した．いずれもフィラー含量の増加に伴ってコンポジットの導電性は向上したが，金属片への接着力は低下した．しかし銀ナノ粒子コンポジットでは，フィラー含量 55 wt%の条件下においても電気伝導度は 10-2 S cm-1 で，なおかつ鉄などに対する接着力は，低下してもなお約 30 MPa を維持し，電気伝導度と接着…
Plankton and ice assemblages of antarctic algae were studied in 2006-2007. Diatoms prevailed in number of species and abundance in both ice and plankton samples. Three genera Chaetoceros, Thalassiosira and Fragilariopsis were the most diverse. Species of 10 genera (Chaetoceros, Thalassiosira, Coscinodiscus, Rhizosolen…
The effect of reaction temperature and flow rate of precursor on the quantity and quality of the multi‐walled carbon nanotubes (MWNTs) produced by catalytic chemical vapour deposition (CCVD) was studied. The MWNTs were grown over zeolite supported catalyst at 700 and 850° C with flow rate of acetylene at 15 and 30 scc…
This contribution describes the fabrication, function and performance of thin‐film variable emittance electrochromic skins fabricated using poly(aniline) as the conducting polymer (CP), a long‐chain polymeric dopant, and an ionic liquid as electrolyte. The ionic electrolyte allows operation in space vacuum without any…