Materials Literature
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Abstract Industrial carburizing parameter optimization traditionally relies on time-consuming and expensive trial-and-error methods, yielding suboptimal results. To address this challenge, the Center for Heat Treating Excellence developed CarbTool, a sophisticated simulation program designed to calculate carbon concen…
Abstract This paper examines the critical role of material selection in the performance of induction-hardened components such as shafts, axles, pins, and gears. The author discusses how material choices impact raw material costs and manufacturing processes, including machining, grinding, and drilling. The paper explor…
Abstract During carburization, the surfaces of the steel parts are subjected to a high carbon potential atmosphere. During the process, carbon is absorbed and diffused into the steel increasing the carbon concentration near the surface and also creating compressive residual stresses. Carburizing is followed by quenchi…
Abstract Advanced electrolysis hydrogen technology has demonstrated utility in providing hydrogen for brazing, annealing, MIM, P/M, flame spray and other thermal treatment techniques, in both continuous and batch modes. Advantages include low flammable inventory, elimination of pressure hazards, eliminating of the nee…
Plasmonic nanoparticles and their assembly have the potential to serve as a platform in practical applications such as photonics, sensing, and nano-medicine. To use plasmonic nanoparticles in these applications, it is important to understand their optical properties and find methods to control their optical response.…
Abstract Due to the absence of oxygen-containing gas components, nitrogen-based atmospheres offer a low-cost alternative to the case hardening treatments typically carried out using vacuum furnaces and, in several local economies, may cost less than the traditional atmospheres. When activated at the furnace inlet with…
Pathological changes to tumor extracellular matrix (ECM) composition, mechanics, and architecture promote cancer progression and metastasis. Exploration of tumor-ECM interactions using in vitro matrix-mimetic culture systems has largely been restricted to naturally-derived matrix materials that permit limited experime…
Synthesis of size tunable nanomaterials creates distinct chemo-physical properties. Recently, the popularity of magnetic iron oxide and cerium oxide (CeO2) nanocrystals enables researchers to use magnetic iron oxides (magnetite and ferrites) in size dependent magnetic separation and CeO2 as an automobile exhaust gas c…
Preprint: Weierstraß-Institut für Angewandte Analysis und Stochastik, vol. 1719
Abstract This study investigates the influence of geometric parameters on residual compressive stress (RCS) in hollow cylindrical parts subjected to induction surface hardening, a crucial factor for improving fatigue strength in components under cyclic loading. Through analytical modeling and numerical simulations, th…
Flexible electronics attract research and commercial interests in last 2 decades for its flexibility, low cost, light weight and etc. To develop and improve the electro-mechanical properties of flexible electrodes is the most critical and important step. In this work, we have performed nanomechanical and electro-mecha…
The armchair variety of single-wall carbon nanotubes (SWCNTs) is the only nanotube species that behaves as a metal with no electronic band gap and massless carriers, making them ideally suited to probe fundamental questions of many-body physics of one-dimensional conductors as well as to serve in applications such as…
Abstract Case-hardening is widely used to enhance the durability of transmission gears. Low-pressure carburizing (LPC) and high-pressure gas quenching (HPGQ) offer advantages over other quenching methods, including reduced distortion, higher fatigue strength, and improved wear resistance. Optimizing LPC and HPGQ proce…
An efficient superconducting magnetic shield can be built as an assembly of YBCO 2G coated conductor sections. Each section is milled and placed around a cylindrical support in order to form a joint free superconducting loop where persistent currents can flow and provide a strong attenuation of a magnetic field. Our p…
The aortic valve maintains unidirectional blood flow between the left ventricle and the systemic circulation. When diseased, the valve is replaced either by a mechanical or a bioprosthetic heart valve, that carry issues such as thrombogenesis, long term structural failure, and calcification, necessitating the developm…
In confined bulk crystal growth techniques such as the traveling heater method, base materials in an ampoule are melted and resolidified as a single crystal. During this process, flow control is desired so that the resulting alloy semiconductors are uniform in composition and have minimal defects. Such control allows…
The development of aptamer-based electrochemical biosensors as an emerging technology has made the detection of small and macromolecular analytes easier, faster, and more suited for early detection of protein biomarkers. Biomarkers are produced by body organs or tumors and measure antigens on cell surfaces. When detec…
This manuscript describes the development of a collagen moulding method for the reproducible rapid manufacturing of storable thin collagen leaflets up to 50 m in thickness, which are intended for use as cardiac patches. The fabricated collagen leaflets are seeded with bone marrow mesenchymal stem cells and kept in cul…
Optical Tamm States (OTS) are investigated at the interfaces of semi-infinite metal and finite one dimensional periodic structures. Three types of periodic structures are considered here. Initially a one dimensional structure of alternate regular material layers is considered. The other two structures consist of alter…
The design of shape memory alloy (SMA) actuators typically compromises between force and stroke, the two properties being hard to achieve simultaneously. This paper presents a bow-like compliant SMA actuator aimed at improving the performance on both sides. Conceptually, the actuator is formed by two straight elastic…