> 2 min

Why is contact angle important?

In industry, wettability is important for example when manufacturing electronics or when planning how to extract oil from the oil reservoir. In all these applications, knowing the contact angle value gives a strong indication on the performance of the product or a successfulness of the process.

2 min

How to characterize nanoparticle suspensions

Nanoparticle suspensions are complex systems and their characterization includes several parameters such as size, concentration in solution, shape, surface charge and chemical composition. Here we provide a list of methods that could be used to characterize nanoparticle suspensions.

> 2 min

What is surface tension?

The net force, which effectively aims to keep the liquid together, is called surface tension.

~ 6 min

Why are overtones important in QCM?

On the topic of QCM, the different resonance harmonics, i.e., the fundamental and the overtone harmonics, are often subject to discussion. So, what is the deal with the overtones? Are they really needed, and if they are, when and why are they important?

~ 2 min

What is contact angle?

Contact angle is easy to understand visually. It is the angle a droplet forms in contact with a solid surface. Thermodynamically, it is a balance between different forces acting on a three-phase contact point where solid, liquid and air meet.

~ 4 min

What are the differences between ASTM D971 and IEC 62961 standards?

The new standard IEC 62961 for the transformer oil quality testing has just been released. In this blog post, the main differences between the old ASTM D971 and the new IEC 62961 standard are discussed.

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