Materials Literature
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Abstract In this work, we study the impact of gate dielectrics on the characteristics of bottom-gated tin-oxide thin-film transistors annealed in an oxygen ambience at 300 °C for various periods. SiO2, HfO2, and Al2O3 are employed as the gate dielectric in the test devices. The results show that the devices will start…
The effect of bismuth and calcium additions on the microstructural characteristics and the tensile properties of the modified and grain-refined Al-Si based B319 alloys were studied in this paper. Based on the results obtained, it has been concluded that Bi reacts with both Sr and Mg, leading to severe demodification o…
Polyacrylonitrile ultrafiltration membranes have been widely used in many separation processes. In this paper, horseradish peroxidase was immobilized onto polyacrylonitrile ultrafiltration membrane by crosslinking with glutaraldehyde. The immobilized enzyme possessed a protein loading of 0.025 mg/cm2membrane and a spe…
Soil CO2 emissions are key components of global carbon cycling. Hence, knowledge of their drivers is important for estimating, and modifying, carbon storage pools. To extend knowledge of these drivers, results of a long‐term (31‐year) experiment in a rice–wheat rotation field in subtropical Central China were analyzed…
The gelatinization properties and crystalline structure of normal cornstarch (NCS) to which a single heat–moisture treatment (SHMT) and a dual heat–moisture treatment (DHMT) had been applied were investigated. NCS was modified by SHMT (adjusted to 25% moisture and heated at 120°C for 6 h) and DHMT (after SHMT, samples…
Cr3C2–20%Ni cermets were fabricated with Cr, C and Ni mixed-powder by high energy milling and reactive carburising sintering. The elemental powders of Cr, C and Ni were mixed with proper ratio (Cr/C = 3:2 atomic ratio) and milled to the nanometre crystallite sizes (about 20–30 nm). Specimens were cold-isostatically pr…
INTRODUCTION: With all of the developments on infectious diseases, tuberculosis (TB) remains a cause of death among people. One of the most promising assembly techniques in nano-technology is "scaffolded DNA origami" to design and construct a nano-scale drug delivery system. Because of the global health problems of tu…
Borates are built from the [Bϕ3] planar triangles and the [Bϕ4] tetrahedral groups, where ϕ denotes O or OH. However, the [Bϕ4] groups in some borates are highly distorted to include three normal B-O bonds and one anomalously long B-O bond and, therefore, are best described as the [OBO3] pyramids. Four synthetic borat…
The Ti–5Al–2Sn–2Zr–4Mo–4Cr (Ti17) titanium alloy is the main material used in manufacturing blades and disks of aero engines, and it is always jointed with different microstructures for the design constraints. In this work, the residual stresses of linear friction welding of β Ti17 and α + β Ti17 are measured by conto…
The detection of degradations and resulting failures in electronic components/systems is of paramount importance for complex industrial applications including nuclear power reactors, aerospace, automotive, and space applications. There is an increasing acceptance of the importance of detection of failures and degradat…
The etching behavior of sputtered molybdenum thin film in a mixture of phosphoric acid and nitric acid was investigated. Open circuit potential transients and potentio-dynamic curves for various molybdenum thin films with different sputtering power were examined. As the power density increased, the residual stress of…
광물탄산화는 이산화탄소를 칼슘, 마그네슘 등을 함유한 금속산화물과 반응시켜 영구적으로 저장하는 기술이다. 본 연구에서는 직접탄산화 방법으로 이산화탄소를 저장하기 위해 해수와 알칼리성 산업부산물인 제지슬러지소각재(PSA)를 사용하였다. 다양한 실험을 통해 해수와 PSA를 이용한 직접탄산화 반응의 최적 용매의 양(해수와 PSA의 혼합비)과 반응시간을 찾았고, PSA를 이용한 직접탄산화 반응에 해수와 초순수를 각각 용매로 사용했을 때의 이산화탄소 저장량을 비교하였다. 이산화탄소 저장량은 탄산화반응 후 고체증가량과 열중량분석 결과를 이용해서 계산하였다. 실험에 사용한 PS…
A thin film transistor (TFT) has been fabricated using the amorphous 0.5 wt% Si doped zinc-tin-oxide (a-0.5 SZTO) with different electrodes made of either aluminium (Al) or titanium/aluminium(Ti/Al). Contact resistance and total channel resistance of a-0.5SZTO TFTs have been investigated and compared using the transmi…
In this paper, the liquid-phase separation of ternary immiscible Al–Bi–Sn melts was studied with resistivity and thermal analysis methods at different temperatures. The resistivity–temperature curves appear anomalous and abrupt change as rising temperature, corresponding to the distinctive and low peak of melting proc…
We describe the design, fabrication, and testing of a spectroscopic refractometer that employs plasmonic interferometry to measure the optical dielectric functions of materials in the visible range. The proposed device, dubbed a plasmonic refractometer, consists of an array of slit-groove plasmonic interferometers etc…
Abstract This article presents the results on a fabrication of silicon nanowires by a two‐step metal‐assisted chemical etching. Morphological and optical properties of the obtained silicon nanostructures depending on the type and resistivity of the initial silicon wafer have been studied. In addition, we have used the…
Abstract Endohedral metallofullerenes (EMFs) have novel structures and properties that are closely associated with the internal metallic species. Benzyl radical additions have been previously shown to form closed‐shell adducts by attaching an odd number of addends to open‐shell EMFs (such as Sc3C2@Ih‐C80) whereas an e…
Numerous studies have underlined the putative diradical character of π-conjugated molecules that can be described by closed-shell Lewis structures, for instance, p-dimethylene p-n phenylenes, or long polyacenes. In the latter compounds, the only way to save the aromaticity of the six-membered rings is to give up the L…
Abstract The utilization of semiconductor quantum dots (QDs) as optical labels for biosensing and biorecognition has made substantial progress. However, the development of a suitable QD‐based luminescent probe that is capable of detecting individual reactive oxygen species (ROS) represents a great challenge, mainly be…
We introduce "sense, track and separate" approach for the removal of Hg(2+) ion from aqueous media using highly ordered and magnetic mesoporous ferrosilicate nanocages functionalised with rhodamine fluorophore derivative. These functionalised materials offer both fluorescent and magnetic properties in a single system…