This document provides information about bright field microscopes. It describes how bright field microscopes work by using light to illuminate specimens on a slide, which appear dark against a bright background. It outlines the basic components of a microscope like the stage, objectives, and eyepieces. The document discusses using bright field microscopy to view stained specimens and provides tips for microscope care, setup, use, and troubleshooting common problems.Read less

DLC films are amorphous and consist of a mixture of sp2 (graphite) & sp3 (diamond) phases. The film properties are strongly dependent on the flux characteristics of the chosen deposition process (PVD sputter or evaporation and PACVD), metal and hydrogen content within the film, sp2:sp3 ratio, substrate bias voltage, ion energy and density, as well as substrate temperatures.

Lightfield microscopy

DLC is ultra resistant to abrasive and adhesive wear, rendering it suitable for use in both rolling and sliding applications that experience extreme contact pressure. Unlike graphite, DLC provides high lubricity at both ambient atmosphere and at vacuum.

At CMC most of the DLC we do is hydrogenated; some of our process is applied in a multi-layer (gradient hardness layers).

DLC coatings are usually 1-4 microns thick. A very thin layer gives a great performance both wear and corrosion protection.

Darkfield microscopy

Due to their unique combination of properties, DLC coatings are extremely effective in many other tribological and wear applications, such as:

Phase contrastmicroscopy

Designed for highly stressed components, AAP is characterized by its extremely smooth surface and self-lubricating properties. Even in low lubrication conditions, the coating decreased the coefficient of friction significantly, performing as well as in well-lubricated conditions.

At CMC we can successfully apply DLC on copper and copper alloys, steel and steel alloys, aluminum, or nickel and chrome plated parts.

Fluorescence microscope

They have provided good results for automotive products, cutting tools, mold, stamping, optical products, biomedical, filters, meshes, audio devices, medical products, nuclear products, among many others.

DLC can coat most conductive metals. Substrate hardness and surface finish influence the durability of the coating (the more polished the surface, the better the durability).

Polarizationmicroscopy

Type of microscope

A DLC process which helps automotive designers achieve the EU6 emission limit and ensures component reliability with a surface solution that combines reduced friction and excellent wear protection.

DLC coating is excellent at coating exterior product surfaces, and some internal dimensions can be coated. But DLC has limitations, as the PVD coating, being “ line of sight” type of coatings, can’t be used to coat deep recesses like the inside of tubes.

This Plasma-Assisted Chemical Vapour Deposition (PACVD) process activates chemical reactions through plasma excitation and ionization. It has been designed with the engineering, automotive, plastics processing, and semiconductor industries in mind. To guarantee best quality and performance, AMP coating is applied in a clean environment at a temperature range of 180°C – 220°C.

DLC coatings are a family of coatings made up primarily of carbon chains in an amorphous structure with sp2 bond (hexagonal known as graphite) and sp3 bond (cubical known as diamond). They are recognized for outstanding mechanical properties and tribological performance.

Differential interference contrastmicroscopy

DLC coatings have a very low coefficient of thickness values. In a dry ball-on-disc (BOD) test the friction values are in the range of 0.1 and in some cases as low as 0.05.

Confocalmicroscopy

Diamond-Like Carbon Coating (DLC) is the ultimate performance coating, offering a wear-resistant chemical barrier for metal, ceramic, glass, and plastic, normally deposited at temperatures below 150°C.

Typical DLC coating temperatures range from 100-250 C. Our DLC coating machines run in the 150-200 C range. Above those temperatures, the DLC coating may not form properly. The DLC coating thickness required to achieve opaque finishes makes maintaining part temperatures <125C challenging.

The oxidation temperature for DLC is low (300C); the application that requires a higher temperature that this will not be a good fit for DLC coatings.

Largest provider of electroless nickel and composite coatings in Ontario. An industry leader since 2001, we offer exceptional solutions to a broad range of industries.

This process is deposited by a combination of PVD and PACVD. It has been designed with racing and high performance engine applications in mind. The ACP coating is applied at a temperature range of 180°C – 350 °C.