Publication Cover
Advances in Applied Ceramics
Structural, Functional and Bioceramics
Volume 110, 2011 - Issue 1
115
Views
10
CrossRef citations to date
0
Altmetric
Original Article

Sintered silicophosphate glass ceramics from MBM ash and recycled soda–lime–silica glass

&
Pages 41-48 | Received 18 Mar 2010, Accepted 30 Jul 2010, Published online: 22 Nov 2013
 

Abstract

Abstract

Meat and bone meal ash, mixed with recycled soda–lime–silica glass and small amounts of additives, was successfully valorised in the processing of sintered glass ceramics, after melting and forming two calcium phosphate glasses. Sintering was applied to fine powders (<37 μm) at temperatures of 700–1070°C for 0·5–2 h, after very rapid heating (40°C min−1). Mixtures with small additions of CaO and CaF2 led to fluorapatite–wollastonite glass ceramics, which retained a significant porosity even at 1070°C, due to the delay in viscous flow caused by rapid crystallisation. This feature was exploited for strong open celled macrocellular glass ceramics, obtained by sintering glass powders mixed with polyethylene sacrificial templates. Mixtures with small additions of CaO and Na2O led to dense and strong combeite glass ceramics (bending strength, >100 MPa), sinterable at particularly low temperatures (800°C). Both porous and dense glass ceramics could be exploited as low cost and high strength materials, or even as biomaterials, due to the biocompatibility of the crystal phases.

EB acknowledges Professor G. Scarinci for a very fruitful and stimulating discussion and Dr Paola Palmero (Politecnico di Torino, Turin, Italy) for supplying PE spheres. PAB acknowledges with thanks the assistance and warm hospitality of Dr E. Bernardo, Professor P. Colombo and their colleagues at Università di Padova. He also thanks Professor I. M. Reaney and EPSRC for supporting this research collaboration through grant no. EP/F012403/1.

Log in via your institution

Log in to Taylor & Francis Online

PDF download + Online access
  • 48 hours access to article PDF & online version
  • Article PDF can be downloaded
  • Article PDF can be printed
USD 61.00 Add to cart
* Local tax will be added as applicable

Related Research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.