Materials Literature
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The features of the processes of reduction of iron oxides Fe 3 O 4 to FeO and FeO to Fe in gas mixtures H 2 ( a o ) – CO ( c o ) in contact with carbon are discussed when heated to temperatures of 850–955 K at a pressure of 1 atm. The total amount of gases in the initial mixture was set ( a o + c o ) = 1 mol, and the…
Carbon materials mostly involved in new alternative clean and sustainable energy technologies have been playing more and more significant role in energy storage and conversion systems, especially for the carbon porous materials, because carbon porous materials with structures can provide large surface areas for reacti…
We review some existence results in the linear elastodynamics of quasicrystals with and without nonlinear phason inertia, and prove in the latter case the existence of a weak attractor.
In this paper, we proposed the combinatorial evaluation method of thermal properties such as glass transition temperature Tg and crystallization temperature Tx for Ti-Ni-X high formable shape memory alloys (HFSMAs). We fabricated the integrated library consisting of 5 samples with different alloy compositions. This li…
α gels are used in variety industrial fields and exhibit a very complex yield behavior. These colloidal gels exhibit the yield behaviors in the stress ramp test and another yield like behavior is also observed in the high shear regime. They are named the first and second yield points in the order of the appearance in…
The plasma membrane reactor (PMR) has been developed to produce hydrogen from ammonia, which are used in the hydrogen carrier energy systems. In commercial use, more hydrogen production efficiency is desired. An innovative plasma membrane reactor (flat plate type PMR) with the flow channel has been developed to solve…
This paper discusses large superplastic-like elongation through a deformation mechanism transition in fine-grained Al−Mg alloys. To obtain a fine-grained microstructure, we adapted friction stir processing (FSP) for use in Al−Mg alloys. The average grain size after FSP in this study was approximately 7 μm. However, th…
We have developed and commercialized novel polyurethane (PU) with high elasticity and durability based on a cycloaliphatic diisocyanate controlled the stereoisomer structure. The diisocyanate is called FORTIMOTM trans-1,4-bis (isocyanatomethyl) cyclohexane (1,4-H6XDI). FORTIMOTM 1,4-H6XDI controlled with high trans is…
化合物半導体と聞いて何を想像するだろう？ バイオ研究者にとってはなかなかなじみのない言葉かもしれないが，おおよそ導体と絶縁体の中間的な物質のことを半導体と呼んでいる．近年の情報化社会を支えているスマートフォン，テレビ，車，洗濯機，エアコンなどの電子機器はもちろん，新幹線，ロケット，宇宙ステーションほとんどの電化製品のなかに半導体素子が存在している．このような半導体素子は無機物でできているため，細胞やタンパク質などとは全く関係ないように思えるが，実は多くの生物がさまざまな無機物を戦略的に利用しながら生存している．本稿では生体分子の機能を活用したバイオマテリアルの作製と利用について述べる．
From the viewpoint of improving both the crash safety and the fuel efficiency, various shaped thin-walled structures have been utilized as energy absorbers of automobiles such as crash box, front side member and so forth. In order to effeciently absorb energy in the crash, those are asked to have appropriate strength/…
Augustine, John (2017): Basic measurements of radiation at station Sioux Falls (2016-05) [dataset]. NOAA - Air Resources Laboratory, Boulder, PANGAEA, https://doi.org/10.1594/PANGAEA.880648, In: Augustine, John; Deluisi, John (2025): Basic measurements of radiation at station Sioux Falls (2003-06 et seq) [dataset publ…
Babanekite, Cu-3(AsO4)(2) center dot 8H(2)O, a new member of the vivianite group was found in material originating from the Geister vein, Rovnost mine, Jachymov, Western Bohemia, Czech Republic. It occurs as a supergene alteration mineral in association with members of the lindackerite supergroup (veselovskyite, hlous…
Even though substantial improvements have been made for the lean NOx trap (LNT) catalyst in recent years, the durability still remains problematic because of the sulfur poisoning and sintering of the precious metals at high operating temperatures. Hence, commercial LNT catalysts were aged and tested in order to invest…
A fuel cell is widely considered as recycled clean energy in the application of aerospace. For the reason that the dynamic performance is poor, supercapacitor (SC) or battery is chosen as the auxiliary power supply. In this study, the fuel cell and SC power the load in parallel to stable the bus voltage. The flexible…
We modified an interface to convert EBSD crystal orientation maps into geometric models for FEM; an algorism to determine the representative crystal orientation in each crystal grain was developed. The algorism for the representative crystal orientations is that we select the crystal orientation belonging to the large…
Stress fields around a dislocation has been investigated within the framework of the first strain gradient elasticity. Dislocation is modeled by a continuous distribution of force dipoles which is implemented into the weak form equilibrium equation through the local body force. Numerical analysis is conducted on the b…
Poly(lactic acid) (PLA) attracts much attention as a material of bone fixation device which is used for fracture treatment, because it degrades to nontoxic lactic acid through non-enzymatic hydrolytic degradation. However, the material has drawbacks, such as lower elastic modulus and no osteoconductivity. Therefore, a…
This study focuses on thermoplastic resin impregnation behavior in carbon fiber reinforced thermoplastic polyimide (CFRTP). The objective of the present study is to clarify the relationship between molding conditions and resin impregnation to fiber bundle and the effect of resin impregnation on the mechanical properti…
La tesis consiste en una aportacion en el campo de los recubrimientos PVD para aplicaciones en procesos de conformado y moldeo a alta temperatura. Para ello se ha abordado el estudio de una serie de familias de recubrimientos potencialmente capaces de resistir temperaturas de trabajo elevadas manteniendo sus caracteri…
An overview of ongoing reference-free X-ray spectrometry, near-ambient pressure X-ray photoelectron spectroscopy and Fourier-Transform infrared micro-spectroscopy studies on the penetration of biocides/antibiotics into bacteria and biofilms is given.