This episode provides a quick overview of the “black core” effect—an internal discoloration in porcelain tiles, typically caused by incomplete oxidation of the ceramic body due to trapped organic residues.It highlights the production conditions that make the defect more likely to appear and then outlines practical corrective strategies to prevent it.All in just ten minutes.
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9:29
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9:29
Bubbles, surfactants, and defoamers
In ceramic manufacturing, aqueous suspensions play a crucial role in shaping processes and determining the final quality of products.However, foam formation can disrupt production, leading to defects and lower efficiency.This episode dives into the world of foaming phenomena, exploring how they arise and how they affect the properties of suspensions. We discuss surfactants, which can encourage foam formation, and defoamers, which help keep it under control.What key insights are needed to effectively manage these challenges?
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11:06
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11:06
Cratering phenomena and ceramic glazes: in short
A closer look at one of the most common flaws that can affect both the performance and the appearance of ceramic glaze.In this episode, we break down the key causes, explain how they arise, and share practical ways to prevent them.For a deeper dive into the topic, check out episode #39.
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10:30
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10:30
Rheology in a nutshell: fundamentals, applications, and role
What is rheology and what is it used for?This episode answers exactly these questions. Without delving into complex details, it presents a few key concepts to help navigate topics such as viscosity, material behavior, and process control.It’s a first step toward understanding the practical role of rheology in improving quality and production efficiency. In ten minutes.
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11:20
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11:20
Wetting agents: functions and applications in the ceramic industry
Wettability is, in general terms, the property that describes a liquid's ability to adhere to a solid surface.It can also be understood as the process through which effective contact is established between a liquid and a solid.In some cases, solid surfaces exhibit low wettability—a characteristic that, while not inherently problematic, can lead to significant issues in the ceramic industry.When raw ceramic bodies or suspended particles display poor wettability, production inefficiencies may arise, ultimately affecting the quality of the final product.Wetting additives play a crucial role in creating the optimal conditions for achieving proper substrate wettability.But how do they work, and in which applications are they most commonly used?
About Apparently invisible. Chemistry in ceramics.
Aware of how complex the problems related to the world of chemistry applied to ceramic production processes can be, we want to share our knowledge with those who want to orient themselves or train for passion or profession.Through a simple and direct language, the podcast aims to be an educational space with a focus on products, applications and processes.The journey unfolds along the ceramic production lines.At each stage a topic.At each topic a critical issue.At each critical issue, when possible, a solution.
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