VACUUM SCIENCE BLOG

Book Review: Vacuum and Ultra Vacuum: Physics and Technology

 

In this blog post, I break down what you can expect from the book in each of its major sections, and offer suggestions on how it can best add value as part of your regular research and development routine.

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Introduction to Vacuum Coating by Sputter Technology

In our blog: 'Introduction to Vacuum Coating Technology', we introduced you to various PVD (Physical Vapor Deposition) methods and how products are typically coated using vacuum technology. Then, in our second blog 'Introduction to Vacuum Coating by Thermal Evaporation', we focused on coating techniques and applications using thermal evaporators and e-beam-evaporators. This blog, will introduce you to sputter technologies, typical uses, and how vacuum technology is applied to the process.

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Global vacuum conferences — A status update as of April 2021

Many vacuum conferences scheduled for 2020 were either cancelled, postponed to 2021, or shifted online. Unfortunately, we’re still in the grips of the COVID-19 pandemic, and even conferences postponed by a full year are facing further postponement or cancellation.

Here’s a quick status update on some of the most important conferences related to vacuum technology and its applications:

 

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New UHV/XHV pumps at ALBA Synchrotron & Argonne Laboratory

In this blog post, we share some recent installations of UHV/XHV pump technologies in electron synchrotrons and how these special pumps perform.

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The Working Principle of Multistage Roots Vacuum Pumps

Fore vacuum pumps are defined as those which exhaust to atmospheric pressure. They are also required to support secondary pumps or to attain the initial conditions for their operation. There are two types of fore vacuum pumps:

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Key working principles of fore vacuum pumps

Fore vacuum pumps are defined as those which exhaust to atmospheric pressure. They are also required to support secondary pumps or to attain the initial conditions for their operation. There are two types of fore vacuum pumps:

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How Vacuum Technology Supports COVID-19 Vaccine Efficacy

The storage and transport of COVID-19 vaccines has to be managed in a cold chain, with the first approved vaccine by Pfizer-BioNtech requiring storage temperatures of -70 C. Besides using dry ice (solid carbon dioxide at -75.8 C), Vacuum Insulated Panels and vacuum insulation have become attractive solutions.

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The key working principles of High and Ultra-High vacuum pumps

High Vacuum (HV) and Ultra-High Vacuum (UHV) levels can only be effectively and efficiently obtained by using a main pump that has the functional capabilities. Choosing which pump to use depends on a number of factors, such as noise/vibration, cost (initial and on-going), tolerance to contamination, footprint, maintenance schedules, and resilience to shock.

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Introduction to Vacuum Coating by Thermal Evaporation

In our previous blog post, Introduction to Vacuum Coating Technology, we shared various PVD (Physical Vapor Deposition) methods and showed typical products being coated using vacuum technologies. Thin films can be adhered to metal, glass, plastics, ceramics, or paper. In this blog post we will focus on Thermal Evaporation techniques.

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How to reduce outgassing in vacuum systems

 

This blog is based on the article in Applied Science and Convergence Technology 26 (5): 95-109 (2017) R Grinham and A Chew.

There are four main ways you can reduce outgassing in your vacuum system. These are: cleaning and handling, surface treatment, passivation, and purging and backfilling. In this blog, we will take a closer look at each of these methods. 

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