摘要:
Anti-microbial coatings and powders and method of forming same on medical devices are provides. The coatings are preferably formed by depositing an anti-microbial biocompatible metal by vapour deposition techniques to produce atomic disorder in the coating such that a sustained release of metal ions sufficient to produce an anti-microbial effect is achieved. Preferred deposition conditions to achieve atomic disorder include a lower than normal substrate temperature, and one or more of a higher than normal working gas pressure and a lower than normal angle of incidence of coating flux. Anti-microbial powders formed by vapour deposition or altered by mechanical working to produce atomic disorder are also provided. The anti-microbial effect of the coatings or powders may be further activated or enhanced by irradiating with a low linear energy transfer form of radiation such as gamma radiation. Novel anti-microbial silver materials are defined, characterized by having a positive rest potential, a Trec/Tm less than 0.33, and a grain size less than 200 nm. Anti-microbial fine grain or nanocrystalline materials are provided, together with methods of preparation, wherein the anti-microbial metal if deposited in a matrix with atoms or molecules of a different material such as other biocompatible metals (ex. Ta), trapped or absorbed oxygen, or compounds of anti-microbial metals or biocompatible metals (ex. Ag0 or TaO). The invention also extends to a method of producing an anti-microbial effect with silver materials that form complex silver ions other than Ag , Ag and Ag .
摘要:
A method for coating substrates is provided. The method includes diamond turning a substrate to a surface roughness of between about 60Å and about 100Å RMS, wherein the substrate is one of a metal and a metal alloy. The method further includes polishing the diamond turned surface of the substrate to a surface roughness of between about 10Å and about 25Å to form a polished substrate, heating the polished substrate, and ion bombarding the substrate with an inert gas. The method includes depositing a coating including at least one metallic layer on the ion bombarded surface of the substrate using low pressure magnetron sputtering, and polishing the coating to form a finished surface having a surface roughness of less than about 25Å RMS using a glycol based colloidal solution.
摘要:
Die vorliegende Erfindung betrifft einen Kolbenring (10) für Kolben von Verbrennungsmotoren, mit einer mit einem Beschichtungsmittel (19) beschichteten Ringlauffläche (13), einem Ringrücken (11) sowie zwei durch einen Spalt (15) beabstandeten Ringstoßenden (14), dadurch gekennzeichnet, dass im Bereich mindestens eines der Ringstoßenden (14) in der Ringlauffläche (13) eine in Umfangsrichtung verlaufende Nut (16, 316) vorgesehen ist, welche bündig zur beschichteten Ringlauffläche (13) mit dem Beschichtungsmittel (19) ausgefüllt ist. Die vorliegende Erfindung betrifft ferner ein Verfahren zur Herstellung eines derartigen Kolbenrings (10).
摘要:
Die Erfindung betrifft ein Substrat aus einer Aluminium-Silizium-Legierung oder kristallinem Silizium mit aufgebrachter polierbarer Schicht sowie einen Metallspiegel, der dieses Substrat umfasst. Weiterhin betrifft die Erfindung ein Verfahren zur Herstellung von Metallspiegeln wie auch die Verwendung des erfindungsgemäßen Metallspiegels.
摘要:
The invention pertains to a method for a mechanical treatment of a surface (7) of a metallic substrate (6) of an article of manufacture (1) comprising the step of treating the surface (7) with abrasive particles (5), which particles (5) comprise a metallic nitride, in particular aluminium nitride (A1N), titan nitride (TiN), and/or silicon nitride (Si3N4), in particular a sintered silicon nitride (SSN). The abrasive particles (5), preferably have on average a fracture toughness of between 5.5 MPa*m and 10.0 MPa.*M .
摘要翻译:本发明涉及一种用于机械处理制品(1)的金属基底(6)的表面(7)的方法,包括用磨料颗粒(5)处理表面(7)的步骤,该颗粒 (5)包括金属氮化物,特别是氮化铝(AlN),氮化钛(TiN)和/或氮化硅(Si 3 N 4),特别是氮化硅烧结体(SSN)。 研磨颗粒(5)的平均断裂韧性优选在5.5MPa * m 1/2和10.0MPa * M 1/2之间。
摘要:
The invention relates to a method for producing a piston ring, comprising the following steps: providing a main body made of an iron-based alloy; depositing a coating on the running surface side of the main body; and producing a structure in the coating, wherein the structure comprises at least one first row of recesses, which are distributed in a periodic pattern in the circumferential direction, and at least one second row of recesses, which are distributed in a periodic pattern in the circumferential direction, wherein the pattern of the second recesses corresponds to the pattern of the first recesses shifted by a length between 0.25 and 0.75 periods.
摘要:
본 발명은 SiO를 연속적으로 제조할 수 있는 SiO 제조 장치 및 방법을 개시한다. 본 발명에 따른 SiO 제조 장치는, SiO 제조용 원료를 공급받고, 공급된 원료를 가열에 의해 반응시켜 SiO 가스를 생성하는 반응부; 및 내부 온도가 상기 반응부의 내부 온도보다 낮은 온도로 유지되고, 회전 부재를 내부 공간에 구비하며, 적어도 일측에 형성된 유입구를 통해 상기 반응부에서 생성된 SiO 가스를 유입시켜, 유입된 SiO 가스가 상기 회전 부재의 표면에 증착되도록 함으로써 SiO 증착물을 수거하는 수거부를 포함한다.
摘要:
The invention relates to a method for producing a coating of fluorescent material, comprising the following steps: a) depositing the fluorescent material from the vapor phase on a substrate in such a manner that at least 30 % by weight of the fluorescent material used are deposited on the substrate, and b) abrading the fluorescent coating to a predetermined even layer thickness by means of a polishing agent.