Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Abstract Starting from an analysis of filler networking in bulk polymers, a constitutive micro‐mechanical model of stress softening and hysteresis of filler reinforced polymer networks is developed. It refers to a non‐affine tube model of rubber elasticity, including hydrodynamic amplification of the rubber matrix by…
Abstract Crystallization of semi‐crystalline polyolefins (i‐polypropylenes and HD‐polyethylenes) in their blends with amorphous cycloolefin copolymers (COC) were studied. The thermal behaviour of the blends was characterized by Differential Scanning Calorimetry (DSC) whereas blend morphologies were investigated by Sca…
A series of sparger tests have been conducted to investigate the performance of a steam sparger, which will be used in a Korean Advanced Power Reactor, APR1400. The tests have been conducted at the Blowdown and Condensation Loop in the Korea Atomic Energy Research Institute using a prototypic steam sparger. The major…
In this paper, we prove that the total macroscopic deformation energy may be decomposed into two parts, namely, elastic energy due to external stress in the absence of transformation and internal interaction energy induced by transformation. We prove that internal interaction energy is a second order polynomial functi…
Heteroepitaxial multilayers, consisting of graphene/hexagonal boron nitride (h-BN) films on Ni (111), have been investigated by means of vibrational spectroscopy, low energy electron diffraction and Auger electron spectroscopy. Vibrational spectra of the heteroepitaxial film show the appearance of transverse optical (…
A mechanism for void formation is suggested, involving an analysis of the resin flow at macro and micro levels. Both these types of flow arise from the characteristic structure of woven fabrics. In order to investigate the mechanism of void formation in woven fabrics, a new dimensionless number was defined as the rati…
The advantages on VLF (very low frequency) on site testing compared to conventional testing at power frequency are shown in practical and dielectrical aspects. Furthermore VLF test voltages enable the possibility of diagnosis on site. The two well established diagnosis methods, dissipation factor (DF) measurement and…
This work investigates the influence on the partial discharge (PD) onset due to the geometry of solder fillets of aerospace and spacecraft component assemblies operating in vacuum and at high voltages. An automatic measuring system has been developed and calibrated to detect PD signals in vacuum (proportional to the a…
Effects of magnetic field on martensitic transformations have been examined in order to know a magnetic field-induced martensitic transformation by using Fe 3 Pt and Fe-Ni-Co-Ti shape memory alloys and an Fe-Ni alloy polycrystals, and control of variants by magnetic field by using Fe-Pd, Ni 2 MnGa and Fe 3 Pt shape me…
Peculiar diffuse scattering and microstructures, which occur prior to the onset of a B2 → 4H transformation in a Ti 50 Pd 34 Fe 16 alloy, have been intensively studied by energy-filtered electron microscopy and high-resolution electron microscopy. Two types of diffuse scattering, i.e., rod-like diffuse scattering eman…
Computer aided alloy design has been used to develop new highly sinterable alloys in order to fulfil the requirements for robust processing of powder metallurgy high speed steels. Three alloys (M35IG, AR-K2 and M42HVIG) have been designed and subsequently analysed in terms of the expected sintering behaviour, atmosphe…
There is a consensus among researchers that the aggregate shape properties affect performance, but a debate has arisen over the suitability of physical tests to quantify the related shape property. Most of the current physical tests are indirect methods of measuring the shape property of aggregates. Also, some of the…
Tritium self-sustainment, which will meet the fuel requirement of fusion reactor, is one of the key issues of fusion power development. The tritium breeding performances of various tritium-breeding materials are compared based on a series of neutronics calculations using three-dimensional Monte Carlo neutron-photon tr…
During the last decade, NiMnGa alloys have drawn an increasing interest due to their shape memory properties, superelasticity and, lately, the magnetic field induced straining effect. Extensive studies have also been devoted to the martensitic transformations, the crystal structures of the martensites and the austenit…
Low-frequency transducers with dry dot contact (or dry point contact (DPC)) allow to overcome the problems of ultrasonic contact in testing of concrete. With the help of these transducers, it is possible to carry out the testing of concrete and other solid materials with longitudinal and shear waves. The principle of…
Impurity separation characteristics of graphite were investigated along with its expansion. Inclusion states of typical clay minerals as impurity in the expanded graphite particles were observed and classified into four distinct types (Type I-IV). Removal of the minerals by the application of simple mechanical impact…
Application of hot-melt products for the production of functional technical textiles is increasing rapidly. The system in comparison to the wet lamination process is able to run at high speeds. Increasing fields of application are realised, such as for the automotive industry, for interlinings, medical textiles, and o…
This work presents a study of the processability and the characterisation of blends of recycled polypropylene (PP) with two different elastomers. The aim of the work was to demonstrate that the introduction of an elastomeric phase could improve the properties of recycled PP without changing the processing characterist…
The transformation of hydrated clay minerals (smectite) to anhydrous forms (illite) occurs in the diagenesis of shales in sedimentary basins. The released pore water can lead to excess pore pressures and is of concern in oil drilling operations. Most simply, the process can be modeled as a first‐order thermally activa…
Abstract The wavenumbers of peaks of parallel and perpendicular polarized components of the CO vibration band for dimethylformamide in the Raman spectra differ by 14.5 cm −1 . The difference in wavenumber values decreases and falls to zero on strong dilution with CCl 4 and dimethyl sulfoxide. A doublet structure of t…