@article {Lima201266,
	title = {Structural, electrical and thermal properties of borosilicate glass-alumina composites},
	journal = {Journal of Alloys and Compounds},
	volume = {538},
	year = {2012},
	note = {<p>cited By 27</p>
},
	pages = {66-72},
	abstract = {<p>Borosilicate glass-alumina composites with (1 - x) Glass + x Al 2O 3 (x = 0, 5, 10, 25 vol.\%) were prepared and the effect of Al 2O 3 addition on the structural, electrical and thermal characteristics was investigated. XRD patterns revealed the presence of cristobalite (SiO 2) in sintered borosilicate glass and that the addition of Al 2O 3 hinders cristobalite formation. This behavior is due to the diffusion of some Al 3+ ions from alumina to glass, which leads to changes in glass structure and composition as identified by SEM/EDS. Cristobalite was undetected in composites containing 10\% Al 2O 3 that attained the lowest thermal expansion coefficient value (\~{}4.6 {\texttimes} 10 -6 {\textdegree}C -1). Conductivity (dc and ac) increased with the amount of Al 3+ ions present in the glass structure as modifiers and formers. Dielectric constant values, in the range 5.0-7.2, increased with Al 2O 3 addition and the values of loss tan δ (1.5-2.1 {\texttimes} 10 -2) indicate that these materials are good insulators. {\textcopyright} 2012 Elsevier B.V. All rights reserved.</p>
},
	doi = {10.1016/j.jallcom.2012.05.024},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84863428569\&doi=10.1016\%2fj.jallcom.2012.05.024\&partnerID=40\&md5=5f318f456f762069bd1e31ad5731c53a},
	author = {Lima, M.M.R.A.a and Monteiro, R.C.C.a and Gra{\c c}a, M.P.F.b and Ferreira Da Silva, M.G.c}
}
