The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The ability to tailor the microstructure of porous ceramics is essential in order to fulfill the requirements of various applications. Depending on the use of porous ceramics, microstructures with open or closed pores, adjustable pore sizes, and a possible self‐setting ability of the wet foam are required. We present a direct foaming method to synthesize self‐setting foams with controlled microstructures, based on our previous studies on particle‐stabilized foams. For the experimental set‐up, alumina particles were partially hydrophobized with propyl gallate and the resulting suspensions were combined with a calcium aluminate cement reaction. Pore size and the fraction of open pores can be controlled by the particle concentration and the setting rate of the cement reaction. As a result, self‐setting ceramic–cement composites with porosities ranging from 40 to 95 vol% and closed as well as open pores with sizes between 30 μm and 1 mm were achieved. Compared with other methods used to produce self‐setting inorganic macroporous materials, foams made with this method cover a wider pore size and porosity range and reach higher total porosities....
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.