Producing Ceramic Foams With Hollow Spheres

Producing ceramic foams with hollow spheres.

Producing ceramic foams with hollow spheres.

The obtained fahs ceramic foams sintered at 1350 c possess high compressive strength of 33 4 mpa and bending strength of 9 6 mpa. Vito materials technology b 2400 mol belgium member american ceramic society. Search for more papers by this author. Compared with the conventional preparation method such as dry pressing direct stack sintering and gelcasting the ceramic foams prepared by sls exhibit the highest porosity.

A gravity infiltration casting technique was studied orbulov and dobránszky to prepare a molten steel within the porously packed hollow alumina ceramic spheres to produce steel matrix sfs. Crystalline phase evolution of the hollow alumina spheres ceramic and mullite precursor powder was followed by x ray diffraction xrd cuka source λ 0 154056 nm 6 min 10 2θ 90. Ceramic hollow spheres are being developed for electronic uses in piezoelectric transducers and low dielectric constant substrates for structural applications in syntactic and metal foams for. Search for more papers by this author.

The density of the syntactic foams is influenced by the packing arrangement of the hollow spheres. 3 hollow spheres also have uses ranging from storage and slow release of pharmaceuticals and radioactive tracers to research in controlled storage and release of hydrogen. Hollow spheres of other materials create syntactic foams with different properties. The properties of ceramic foams prepared using hollow spheres by different methods are shown in table 2.

Search for more papers by this author. Producing ceramic foams with hollow spheres article in journal of the american ceramic society 87 1 170 172 june 2008 with 78 reads how we measure reads. The apparent porosity and bulk density of the hollow alumina spheres based ceramics were determined by the archimedes method. The process was based on the mullitization of al 2 o 3 and kaolin and the sic particles were bonded by the mullite and melted sio 2 the pores were produced by the stacking of sic particles debonding of epoxy and adding of sio 2 hollow microspheres.

Vito materials technology b 2400 mol belgium. The obtained fahs ceramic foams exhibit high porosity in the range of 73 81 which is much higher than those reported in literatures with respect to ceramic foams from hollow spheres. Vito materials technology b 2400 mol belgium. Porous sic ceramics were fabricated by 3d printing through selective laser sintering sls and adding hollow spheres ahs.