Piezoelectric atomization, which breaks liquid into tiny droplets, is widely used in aerospace, medicine, and health. Most research piezoelectric atomizers has increased the atomization amount by improving mechanical structure optimizing vibration characteristics. However, as core component of atomizer to realize using dynamic conical angle effect, micro-tapered hole on atomizing sheet not been...

The effect of different surface preparation methods such as mechanical, chemical and electrochemical surface preparation on the formation, stability and deterioration of surface films formed on austenitic 304 stainless steel was investigated in Tyrode’s physiological solution by cyclic polarization curves, AC impedance measurements surface techniques. A hysteresis loop in a cyclic polarization ...

The proposed linear electron-positron collider TESLA is based on 1.3 GHz superconducting niobium cavities for particle acceleration. For a center-of-mass energy of 500 GeV an accelerating field of 23.4 MV/m is required which is reliably achieved with a niobium surface preparation by chemical etching. An upgrade of the collider to 800 GeV requires an improved cavity preparation technique. In thi...

In 19 10 S P I T A L S K Y ( 1 ) described, in a Germ an patent then granted, an electro­ lytic process which imparted to silver a highly increased lustre in the course of a few minutes. This, according to the description of the process, constitutes the first known exam ple of electrolytic polishing (electropolishing) that has come to the author’s notice. The silver was placed as anode in an al...

This paper describes an ultra precision polishing method of aspherical mirrors, and the fundamental research on polishing characteristics. The aspherical mirrors with a diameter of about 30mm made by fused silica glass and CVD-SiC were ELID (electrolytic in-process dressing)-ground to high form accuracy with #4000 cast iron bonded diamond wheel, and then polished with a small polishing tool. As...