Facilitating TiB2 for Filtered Vacuum Cathodic Arc Evaporation

Brzezinka, Tomasz L.; Rao, Jeff; Paiva, José Mario; Azkona, I.; Kohlscheen, Joern; Rabinovich, German S. Fox; Veldhuis, Stephen C.; Endrino, José L.

doi:10.3390/coatings10030244

Cited by 4 publications

(2 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, it has the drawback of being unable to deposit complex structures. Several functional layers have been coated via the CAD method for integrated photonics applications [63][64][65][66].…”

Section: A Vacuummentioning

confidence: 99%

Optical Thin Films Fabrication Techniques—Towards a Low-Cost Solution for the Integrated Photonic Platform: A Review of the Current Status

et al. 2022

View full text Add to dashboard Cite

In the past few decades, several methods concerning optical thin films have been established to facilitate the development of integrated optics. This paper provides a brief depiction of different techniques for implementing optical waveguide thin films that involve chemical, physical, and refractive index modification methods. Recent advances in these fabrication methods are also been presented. Most of the methods developed for the realization of the thin-films are quite efficient, but they are expensive and require sophisticated equipment. The major interest of the scientists is to develop simple and cost-effective methods for mass production of optical thin films resulting in the effective commercialization of the waveguide technology. Our research group is focused on developing a silica-titania optical waveguide platform via the sol-gel dip-coating method and implementing active and passive optical elements via the wet etching method. We are also exploring the possibility of using nanoimprint lithography (NIL) for patterning these films so that the fabrication process is efficient and economical. The recent developments of this platform are discussed. We believe that silica-titania waveguide technology developed via the sol-gel dip-coating method is highly attractive and economical, such that it can be commercialized for applications such as sensing and optical interconnects.

show abstract

Section: A Vacuummentioning

confidence: 99%

Optical Thin Films Fabrication Techniques—Towards a Low-Cost Solution for the Integrated Photonic Platform: A Review of the Current Status

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The coating is positioned as a composition for processing non-ferrous metals, mainly aluminum and titanium, which are characterized by the intensive formation of sticking on the tool cutting edge. In most cases, the TiB 2 coating is obtained by magnetron sputtering, since the cathode-arc evaporation of this material is associated with some technical difficulties [ 18 ]. It is usually a monolayer with a thickness of 1 to 4 µm.…”

Section: Introductionmentioning

confidence: 99%

The Study of Radius End Mills with TiB2 Coating When Milling a Nickel Alloy

et al. 2023

View full text Add to dashboard Cite

Nickel alloy high-speed processing technology using ball-end mills is characterized by high contact temperature and leads to accelerated tool wear. One of the effective ways to increase its reliability and service life is to modify the surface by applying functional antifriction layers in addition to wear-resistant coatings. Diamond-like carbon is often used as the latter. However, at cutting speed, when a cutting-edge temperature exceeding 650 °C is reached, the material of this coating reacts actively with oxygen in the air, and the sharply increasing adhesive component of wear quickly incapacitates the milling tooth, limiting its performance. Applying a coating of titanium diboride as an antifriction layer on top of nanocrystalline composite nitride coatings with good resistance to abrasive wear can be a solution to this problem. Our experiments have shown that such technology makes it possible to obtain a twofold increase in durability compared to a tool with a diamond-like antifriction coating in conditions when the cutting edge of the tool is subjected to cyclic thermal shocks above 800 °C, and the durability period of the radius end mill is about 50 min.

show abstract