Abstract:
The present disclosure provides methods to improve the properties of a porous structure formed by a rapid manufacturing technique. Embodiments of the present disclosure increase the bonding between the micro-particles 5 on the surface of the porous structure and the porous structure itself without substantially reduce the surface area of the micro-particles. In one aspect, embodiments of the present disclosure improves the bonding while preserving or increasing the friction of the structure against adjacent materials.
Abstract:
Verfahren zur Behebung von kritischen Fehlern von Materialien auf Siliciumkarbidbasis, wobei mit einem Laser oder zwei kombinierten Laserquellen stoffschlüssig unter Zufuhr von Siliciumkarbidpulver oder einer Mischung aus Silicium, Kohlenstoff und Siliciumkarbidpulver reaktiv gelötet wird.
Abstract:
A method for manufacturing a solid oxide fuel cell element (2) by layer-wise buildup is characterized in that at least one section of the element is built up by carrying out a step that at least comprises the following at least once: applying a layer section of a particulate ceramic material with predefined dimensions onto a base layer in a predefined area and heating the layer section by means of a heat source such that the particles of the ceramic material connect to one another within the predefined dimensions. The solid oxide fuel cell element manufactured with the method is realized in one piece, as well as highly compact, and has a low weight.
Abstract:
Ce procédé consiste, après avoir choisi une poudre céramique parmi celles disponibles sur le marché en fonction des paramètres de fabrication, à fritter cette dernière à l'aide d'un laser de manière à obtenir un gabarit (7,8) directement utilisable, sans aucun traitement, dans une étape suivante, consistant à couler de la poudre métallique autour du gabarit et à fritter le tout au four. Un tel procédé est particulièrement rapide et peu onéreux à mettre en oeuvre. Il est particulièrement utilisable pour la production d'empreintes destinées au moulage par gravité ou au moulage par injection à basse ou haute pression.
Abstract:
The invention relates to an electrically conductive connection between a metal connector and a metal layer containing at least one metal applied and bonded by sintering to a ceramic substrate preferably comprising glass and/or vitreous ceramic in small quantities, with the connector welded to said metal layer, in which an adhesion layer having a glass and/or vitreous ceramic and metal particles is applied and bonded by fusion to the ceramic substrate and the metal layer with the sintered bond is applied thereto, and the connector is welded to the metal layer, preferably by laser welding.
Abstract:
An additive manufactured part and a method for manufacturing the part are presented. The part includes a base portion, a gauge-cavity portion and a top portion, each of which includes one or more additively manufactured successive layers. Additionally, the gauge-cavity portion includes a gauge integrated therewithin. In the part the gauge-cavity portion is sandwiched between the base portion and the top portion. A gauge connector configured to communicate gauge data projects out from a surface of the part or is accessible from a surface of the part through an opening. The part when being manufactured by additive manufacturing is inserted with the gauge following halting of the additive manufacturing. The manufacturing of remaining portions, i.e. the top portion, of the part is resumed after placing the gauge into a cavity formed in the gauge-cavity portion of the part that was formed on top of the base portion before halting manufacturing.
Abstract:
The present invention relates to a process for the preparation of a sterilized ceramic body comprising or essentially consisting of stabilized zirconia of a defined colour. The process comprising the subsequent steps of a) providing a ceramic primary body comprising or essentially consisting of stabilized zirconia of a first colour A, and b) sterilizing the primary body using radiation sterilization whereby the primary body undergoes a colour change to a colour B. According to the invention, the process comprises the further step of c) irradiating the sterilized primary body with electromagnetic radiation of at least one wavelength lying in the wavelength band ranging from 150 nm to 700 nm to induce an at least partial reversal of the colour change of step b) to obtain a colour C of the sterilized ceramic body, said colour C complying with the following requirements in the CIELAB colour space : L* being from 54 to 95, a* being from -15 to 15 and b* being from -15 to 15.
Abstract:
A silicide-based composite material is disclosed, comprising a silicide of Mo, B, W, Nb, Ta, Ti, Cr, Co, Y, or a combination thereof, Si3N4, and at least an oxide, from the group consisting of Yttrium oxides and Cerium oxides as well as and a process for producing the same, said process comprising the steps of: i) providing powders of silicide, Si3N4, and at least an oxide, ii) homogeneously blending the powders, iii) lying at least a first layer of blended powders on a support surface, iv) melting at least a part of the powders by activating a power source, said source having an energy power of 150-1000W, and v) allowing the melted powders to cool and solidify, thus obtaining the silicide-based composite material.
Abstract translation:公开了一种硅化物基复合材料,其包含Mo,B,W,Nb,Ta,Ti,Cr,Co,Y或其组合的硅化物,Si 3 N 4和至少一种氧化物,选自钇 氧化物和铈氧化物以及其制备方法,所述方法包括以下步骤:i)提供硅化物粉末,Si 3 N 4和至少一种氧化物,ii)均匀地混合粉末,iii)至少一种 第一层混合粉末,iv)通过激活电源熔化至少一部分粉末,所述源具有150-1000W的能量功率,和v)使熔化的粉末冷却并固化,因此 获得硅化物基复合材料。
Abstract:
Disclosed herein are methods for making a sealed device (200), the methods comprising positioning a sealing layer comprising at least one metal between a first glass substrate (201a) and a second substrate (201b) to form a sealing interface; and directing a laser beam operating at a predetermined wavelength onto the sealing interface to form at least one seal (207) between the first and second substrates and to convert the at least one metal to metal nanoparticles. Sealed devices having a seal comprising metal nanoparticles having a particles size of less than about 50 nm are also disclosed herein, as well as display devices comprising such sealed devices.