Abstract:
An engineered composite system designed to be passive or inert under one set of conditions, but becomes active when exposed to a second set of conditions. This system can include a dissolving or disintegrating core, and a surface coating that has higher strength or which only dissolves under certain temperature and pH conditions, or in selected fluids. These reactive materials are useful for oil and gas completions and well stimulation processes, enhanced oil and gas recovery operations, as well as in defensive and mining applications requiring high energy density and good mechanical properties, but which can be stored and used for long periods of time without degradation.
Abstract:
An engineered composite system designed to be passive or inert under one set of conditions, but becomes active when exposed to a second set of conditions. This system can include a dissolving or disintegrating core, and a surface coating that has higher strength or which only dissolves under certain temperature and pH conditions, or in selected fluids. These reactive materials are useful for oil and gas completions and well stimulation processes, enhanced oil and gas recovery operations, as well as in defensive and mining applications requiring high energy density and good mechanical properties, but which can be stored and used for long periods of time without degradation.
Abstract:
A bioabsorbable wire material includes manganese (Mn) and iron (Fe). One or more additional constituent materials (X) are added to control corrosion in an in vivo environment and, in particular, to prevent and/or substantially reduce the potential for pitting corrosion. For example, the (X) element in the Fe—Mn—X system may include nitrogen (N), molybdenum (Mo) or chromium (Cr), or a combination of these. This promotes controlled degradation of the wire material, such that a high percentage loss of material the overall material mass and volume may occur without fracture of the wire material into multiple wire fragments. In some embodiments, the wire material may have retained cold work for enhanced strength, such as for medical applications. In some applications, the wire material may be a fine wire suitable for use in resorbable in vivo structures such as stents.
Abstract:
A ceramic electronic component includes a first dielectric layer, a second dielectric layer, and a boundary reaction layer. The first dielectric layer is a layer containing BaO, Nd2O3, and TiO2, the second dielectric layer is a layer containing a material different from the material of the first dielectric layer, and the boundary reaction layer is a layer formed between the first dielectric layer and the second dielectric layer and containing at least one of Zn, Ti, Cu, and Mg.
Abstract translation:陶瓷电子部件包括第一电介质层,第二电介质层和边界反应层。 第一电介质层是包含BaO,Nd 2 O 3和TiO 2的层,第二电介质层是包含与第一电介质层的材料不同的材料的层,边界反应层是形成在第一电介质层和 第二电介质层并且包含Zn,Ti,Cu和Mg中的至少一种。
Abstract:
Free standing articles or articles at least partially coated with substantially porosity free, fine-grained and/or amorphous Co-bearing metallic materials optionally containing solid particulates dispersed therein, are disclosed. The electrodeposited metallic layers and/or patches comprising Co provide, enhance or restore strength, wear and/or lubricity of substrates without reducing the fatigue performance compared to either uncoated or equivalent thickness chromium coated substrate. The fine-grained and/or amorphous metallic coatings comprising Co are particularly suited for articles exposed to thermal cycling, fatigue and other stresses and/or in applications requiring anti-microbial properties.
Abstract:
In joining a magnesium alloy material 1 (first material) and a steel material (second material), a zinc-plated steel plate 2 plated with zinc (metal C) is used as a steel material, Al (metal D) is added to the magnesium alloy material 1. Next, eutectic melting of Mg and Zn is caused so as to remove a product produced by the eutectic melting with an oxide film 1f and impurities from a joint interface. Moreover, an Al—Mg system intermetallic compound such as Al3Mg2 and an Fe—Al system intermetallic compound such as FeAl3 are produced, whereby regenerated surfaces of both materials 1 and 2 are joined via a compound layer 3 containing those intermetallic compounds.
Abstract:
Disclosed herein are foam glasses and compositions comprising such foam glasses, which can be used, for example, in structural applications. The foam glass can have one or more properties, such as a density ranging from about 20 Ib/ft3 to about 100 Ib/ft3, a compressive strength of at least about 650 psi, and an alumina content of at least about 5% by weight, relative to the total weight of the foam glass. Also disclosed are methods for preparing foam glasses.
Abstract translation:本文公开了泡沫玻璃和包含这种泡沫玻璃的组合物,其可以用于例如结构应用。 泡沫玻璃可以具有一种或多种性质,例如约20lb / ft 3至约100lb / ft 3的密度,至少约650psi的抗压强度和至少约5重量%的氧化铝含量 ,相对于泡沫玻璃的总重量。 还公开了制备泡沫玻璃的方法。
Abstract:
A metal surface treatment composition including at least one compound selected from the group consisting of a zirconium compound and a titanium compound, and an organosiloxane, which is a polycondensate of organosilane and has in a molecule thereof of at least two amino groups, in which the Degree of polycondensation of the organosiloxane is at least 40%, the content of at least one compound selected from the group consisting of the zirconium compound and the titanium compound is predetermined content, the content of the organosiloxane in the metal surface treatment composition is predetermined content, and the mass ratio of at least one element selected from the group consisting of the zirconium element and the titanium element contained in the zirconium compound and the titanium compound, respectively, to the silicon element contained in the organosiloxane is a predetermined ratio.
Abstract:
An active solder is revealed. The active solder includes an active material and a metal substrate. There are two kinds of active materials, titanium together with rare earth elements and magnesium. The metal substrate is composed of a main component and an additive. The main component is tin-zinc alloy and the additive is selected from bismuth, indium, silver, copper or their combinations. The active solder enables targets and backing plates to be joined with each other directly in the atmosphere. The target is ceramic or aluminum with low wetting properties. The bonding temperature of the active solder ranges from 150° C. to 200° C. so that the problem of thermal stress can be avoided.
Abstract:
There is provided a separator for a fuel cell having a very good anticorrosiveness and electrical conductivity.A separator for a fuel cell according to the present invention includes: a base 1 formed of a steel which contains 10.5 mass % or more of Cr; a metal film 3 formed on the surface of the base 1; and an intermediate layer 2 formed between the base 1 and the metal film 3, the intermediate layer 2 containing oxygen. The metal film 3 is composed of at least one metallic element selected from the group consisting of Ta, Nb, and Ti, and the intermediate layer 2 contains Fe and Cr which are contained in the steel and at least one metallic element selected from the group consisting of Ta, Nb, and Ti composing the metal film 3.