Materials Literature
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Field-induced phase transition from the antiferroelectric to the ferroelectric phase was studied by dielectric measurements in an antiferroelectric liquid crystal (AFLC) CS-4001. Two distinctive relaxation modes were found to contribute to the dielectric anomalies of the field-induced transition in the AFLC CS-4001.
M Watanabe, D B Williams; Improvements to Energy Resolution of an X-ray Energy Dispersive Spectrum by Deconvolution Using the Zero Strobe Peak, Microscopy
The phase diagram and elastic stiffness constants in Martensite alloys with the symmetry change from the cubic m\bar3m to the tetragonal 4/mmm and the orthorhombic mmm symmetries are discussed on the basis of the Landau-type free energy function expressed in terms of the strain components, u 1 , u 2 and u 3 . It was f…
The structures of a long-range-ordered physisorbed monolayer on a carbon nanotube are examined. Geometrical and energetical constraints determining the order of such monolayers are discussed. A number of symmetrically different, strongly bound adsorbate structures is found for Xe adsorbates, some of which differ very…
In this work, the piezoelectric ceramic system of Pb 0.96 Sr 0.04 [(Zr 0.74- x Ti x )(Mg 1/3 Nb 2/3 ) 0.20 (Zn 1/3 Nb 2/3 ) 0.06 ]O 3 , 0.3478≤ x ≤0.4218, with composition close to the morphotropic phase boundary, was studied. From the results of X-ray diffraction and piezoelectric measurement, ceramics near x =0.3774…
Effect of Ion Trapping Films on the Electrooptic Characteristics of Polymer-Stabilized Ferroelectric Liquid Crystal Display Exhibiting V-Shaped Switching, Furuichi, Keiji, Xu, Jun, Inoue, Masaru, Furuta, Hirokazu, Yoshida, Nobuaki, Tounai, Atsushi, Tanaka, Yoshiki, Mochizuki, Akihiro, Kobayashi, Shunsuke
Effects of alumina on the devitrification kinetics and mechanism of a low-dielectric K 2 O–CaO–SrO–BaO–B 2 O 3 –SiO 2 glass powder have been investigated. Crystalline phases including cristobalite (SiO 2 ) and pseudowollastonite [(Ca, Ba, Sr)SiO 3 ] are formed during the firing of the pure glass. With added alumina co…
The equilibrium swelling and phase behavior of the side chain liquid crystalline (LC) networks in isotropic (nonmesomorphic) solvents has been investigated as a function of temperature. The LC networks swollen in di- n -amyl phthalate or di- n -butyl phthalate exhibit discontinuous volume transition driven by nematic…
Electrochemical treatment of poly(tetrafluoroethylene) (PTFE) surfaces has been effected in localized areas of typical dimension of the order of 200 μm, leading to small regions of increased surface free energy. These have been studied by considering the wetting triple lines of tricresyl phosphate in the vicinity. Goo…
Image Pickup from Zinc Phthalocyanine/Bathocuproine Double-Layer Film Using Pickup Tube, Aihara, Satoshi, Miyakawa, Kazunori, Ohkawa, Yuji, Matsubara, Tomoki, Takahata, Tamotsu, Suzuki, Shiro, Egami, Norifumi, Saito, Nobuo, Tanioka, Kenkichi, Kamata, Norihiko, Terunuma, Daiyo
The effects of light-induced reorientation on a homeotropical dye-doped liquid crystal (DDLC) cell are discussed. The photoexcited azo dye Methyl Red (MR) is diffused and adsorbed onto the substrate, thus forming a ripple structure. The adsorbed dye and the laser-induced ripple structure then reorient the liquid-cryst…
We have investigated the crystal structures and magnetic properties of the α- and δ-phases of an organic radical p -NPNN ( p -nitrophenyl α-nitronyl nitroxide), which yielded the first organic bulk ferromagnet, β- p -NPNN (the β-phase). The results are compared with those of the β- and γ-phases, which show distinct ma…
A new family of polysilsesquioxanes colloids was synthesized by hydrolytic condensation of a functionalized precursor N-(6-aminohexyl)aminopropyltrimethoxysilane (AHAPS), H 2 N(CH 2 ) 6 NHCH 2 CH 2 CH 2 Si(OCH 3 ) 3, and studied using small-angle X-ray scattering, transmission electron microscopy, liquid and solid sta…
Abstract We investigated the effect of polyvinylsilicone oil (C gum) as a crosslinker and 2,5‐bis( tert ‐butyl peroxy)‐2,5‐dimethyl hexane (DBPMH) as a curing agent on the conductivity of conductive silicone rubber with two different kinds of conducting mechanisms. The experimental results show that the volume resisti…
Abstract The phase morphology and mechanical properties of polypropylene (PP) composites containing ethylene–octene elastomer (EOR) and calcium carbonate (CaCO 3 ) filler were investigated by comparing the toughening effect of unmodified EOR with EOR grafted with maleic anhydride (EOR–MA). EORs of various MA contents…
Abstract 3,3‐Diphenyl‐3 H ‐naphtho[2,1‐ b ]pyrans linked to one, two, or three thiophene nuclei in different positions of the naphthalene moiety (5, 6, 8, and 9) by a covalent bond have been prepared in good yields. A Suzuki cross‐coupling reaction was used with two possible strategies: chromenization before the coupl…
Radially linked star- block -linear polystyrenes, star-shaped polymers with star-shaped branching at the ends of each arm, were synthesized by the convergent living anionic polymerization method. These novel structurally modified polymers were synthesized by sequential addition of a specific coupling agent, 4-(chlorod…
Most experts agree that it is too early to say how quantum computers will eventually be built, and several nanoscale solid-state schemes are being implemented in a range of materials. Nanofabricated quantum dots can be made in designer configurations, with established technology for controlling interactions and for re…
Systematic results of the photoemission spectra for different core levels such as, Tm 4 p , 5 p and 3 d in the mixed valent Tm-monochalcogenides (TmS, TmSe and TmTe) obtained by both experimentally and theoretically are reported. The effects of the electron–electron correlation due to the interaction between core-hole…
X-ray diffraction study was performed for the atomic arrangements in Pt-rich (87.5 at.%) Cu–Pt alloy with the cubic structure both in the disordered and ordered states using single crystal samples. In the disordered state obtained by quenching from temperatures above 800°C, short-range order (SRO) diffuse scattering i…