摘要:
A technique for embedding a nanotube in a nanopore is provided. A membrane separates a reservoir into a first reservoir part and a second reservoir part, and the nanopore is formed through the membrane for connecting the first and second reservoir parts. An ionic fluid fills the nanopore, the first reservoir part, and the second reservoir part. A first electrode is dipped in the first reservoir part, and a second electrode is dipped in the second reservoir part. Driving the nanotube into the nanopore causes an inner surface of the nanopore to form a covalent bond to an outer surface of the nanotube via an organic coating so that the inner surface of the nanotube will be the new nanopore with a super smooth surface for studying bio-molecules while they translocate through the nanotube.
摘要:
The invention relates to the wet-chemical or electrolytic treatment of flat material, for example a wafer, which according to the prior art is treated by means of technically complex frames or grippers in treatment chambers. Particularly in the case of fracture-sensitive material such as silicon solar cells, the handling is very time-consuming, especially when the underside of the material must not be wetted. According to the invention, the material (1) is placed without frames, grippers or holders above a vertically arranged treatment chamber (3) so that only the underside is wetted by the treatment liquid. As a result of a rotationally symmetric flow (4) on the underside (7) of the material placed on the surface of a treatment liquid, the adhesion forces acting horizontally on the material (1) cancel one another out. A lateral shift of the material does not occur. The limiters or lateral end stops which are usually used can therefore be dispensed with.
摘要:
An apparatus (20) for metal plating aircraft engine components (10) allows the creation a local environment for plating by covering a localized area (12) to be plated so that the localized area (12) to be plated is sealed from remaining parts of the component (10), thereby eliminating the need for masking remaining parts of the component (10) prior to plating. The apparatus (20) comprises a hood body (22) adapted to cover the surface area (12), the body (12) having an annular anode (44) and passages (36) for passing plating fluid to a gap (42) between the hood (22) and the component (10).
摘要:
A Sn or Sn alloy plated film 2 formed on other surface of a copper foil or a copper alloy foil 1 having a resin layer or film 4 laminated on one side surface thereof, wherein Sn or Sn alloy plated film has a percentage of (200) plane orientation of 20 to 40%.
摘要:
The invention relates to the electrical contact of flat material (1) as sections in straight-through installations for the electrolytic and/or chemical wet treatment of the treatment side (10) of the material using external electric current, with the top, contact side (9) being kept dry and the treatment side (10) penetrating into the treatment liquid (11). The known transporting systems with top and bottom transporting and/or contact means result in treatment liquid (11) being transferred from the bottom means to the top means, in which case the top side of the material is often inadmissbly wetted and the top contacts are galvanized and therefore continuously stripped, which requires relatively high outlay. According to the invention, the level is lowered in the region of top contacts (6). This means that these cannot be wetted, even when there is no material located in the region of the contacts (6). This is achieved by way of downpipes (5) which are assigned to each contact (6). Even in the case of contacts being relieved of any stressing, they do not come into contact with any treatment liquid, as a result of which the top side of the material remains dry and the contacts do not require any stripping.
摘要:
Die erfindung betrifft ein Verfahren zur Herstellung von einseitig platinierten Platten aus Refraktärmetallen, bei dem man Platten vorgegebener Abmessung aus Refraktärmetall Rücken an Rücken formschlüssig dicht mit einander verbindet, diese mittels Schmelzelektrolyse auf ihren freien Oberflächen mit Platin beschichtet und dann die Platten von einander trennt. Diese Platten können zu einseitig platinierten Streckmetallgittern verarbeitet werden. Diese einseitig platinierten Platten aus Refraktärmetallen und die daraus gefertigten einseitig platinierten Streckmetallgitter können sehr vorteilhaft als Anoden in elektrolytischen und galvanischen Prozessen eingesetzt werden.
摘要:
Verfahren zur einseitigen elektrolytischen Beschichtung flächiger Werkstücke aus Stahl, insbesondere Stahlbänder, mit einem Metall bzw. einer Metallegierung, insbesondere mit einer Zink-Nickel-Legierung, gekennzeichnet durch das Aufbringen einer dünnen Schicht aus demselben Material, das für die einseitige Beschichtung vorgesehen ist, auf beiden Seiten des Werkstückes; anschließende einseitige Beschichtung; und schließlich elektrolytische Ablösung der dünnen Schicht auf der Seite, welche der dauerhaft zu beschichtenden Seite gegenüberliegt. Als Elektrolyt bei der Ablösung wird eine wässrige Lösung eines Alkali- oder Erdalkalichlorids, vorzugsweise Natrium- oder Kalkumchlorid bei einem ph-Wert von 7 - 12 verwendet.