A study is performed to determine the reaction time which is required at 1600°C to obtain mullite from clay with a high content of kaolinite (clay from the La Rioja Province of Argentina) and from a stoichiometric mixture of the clay and calcined alumina of grade Almatis-A2G. The chemical composition of the raw materials was determined and they were studied by x-ray diffraction (XRD) and examined on a scanning electron microscope (SEM). The materials were then mixed in the stoichiometric proportions 3Al2O3·2SiO2 and pressed at 100 MPa. The pressed specimens were fired at 1600°C in electric furnaces for different lengths of time: 0.25, 0.5, 1, 2, 3, and 5 h. Their density and porosity were determined after they were fired. In the studies performed on the scanning electron microscope and by x-ray diffraction; the crystalline phases were identified by the Rietveld method and the amorphous phases were determined by means of the Le Bail model. The objective was to determine the amounts of primary and secondary mullite that were present and the total mullite content.
Refractories and Industrial Ceramics – Springer Journals
Published: Dec 8, 2015
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera