Chapter 32
Grain Porous Structure and Exploitation
Properties of Humidity-Sensitive
Magnesium Aluminate Spinel-Type
Ceramics
H. Klym, I. Hadzaman, O. Shpotyuk, and A. Ingram
32.1 Introduction
Nanostructured functional spinel-based MgAl 2 O 4 ceramics is considered very
interesting material when it comes to applications as active elements for humidity
sensors [1–3]. It is established that sensing functionality of these materials is
determined largely by the microstructure of ceramics grains, grain boundaries, and
pores [4]. These elements are strongly dependent on ceramics sintering route [5].
Therefore, the correlation between sintering temperature of the abovementioned
ceramics, its porous structure, and exploitation properties should be carefully taken
into account.
The microstructure of ceramics is typically probed with conventional Xray diffractometry (XRD) and scanning electron microscopy (SEM) and using
porosimetry methods [6, 7]. In order to obtain more information on sintering effects
in MgAl 2 O 4 ceramics, the approach should be extended based on new methods of
structural characterization. Those include the techniques that yield independent data
on phase composition of ceramics bulk and small (1–2 nm) pores corresponding
H. Klym ()
Lviv Polytechnic National University, Lviv, Ukraine
e-mail: halyna.i.klym@lpnu.ua
I. Hadzaman
Drohobych State Pedagogical University, Drohobych, Ukraine
O. Shpotyuk
Vlokh Institute of Physical Optics, Lviv, Ukraine
Jan Dlugosz University in Czestochowa, Czestochowa, Poland
A. Ingram
Opole University of Technology, Opole, Poland
© Springer International Publishing AG, part of Springer Nature 2018
O. Fesenko, L. Yatsenko (eds.), Nanochemistry, Biotechnology, Nanomaterials,
and Their Applications, Springer Proceedings in Physics 214,
https://doi.org/10.1007/978-3-319-92567-7_32
499
Grain Porous Structure and Exploitation
Properties of Humidity-Sensitive
Magnesium Aluminate Spinel-Type
Ceramics
H. Klym, I. Hadzaman, O. Shpotyuk, and A. Ingram
32.1 Introduction
Nanostructured functional spinel-based MgAl 2 O 4 ceramics is considered very
interesting material when it comes to applications as active elements for humidity
sensors [1–3]. It is established that sensing functionality of these materials is
determined largely by the microstructure of ceramics grains, grain boundaries, and
pores [4]. These elements are strongly dependent on ceramics sintering route [5].
Therefore, the correlation between sintering temperature of the abovementioned
ceramics, its porous structure, and exploitation properties should be carefully taken
into account.
The microstructure of ceramics is typically probed with conventional Xray diffractometry (XRD) and scanning electron microscopy (SEM) and using
porosimetry methods [6, 7]. In order to obtain more information on sintering effects
in MgAl 2 O 4 ceramics, the approach should be extended based on new methods of
structural characterization. Those include the techniques that yield independent data
on phase composition of ceramics bulk and small (1–2 nm) pores corresponding
H. Klym ()
Lviv Polytechnic National University, Lviv, Ukraine
e-mail: halyna.i.klym@lpnu.ua
I. Hadzaman
Drohobych State Pedagogical University, Drohobych, Ukraine
O. Shpotyuk
Vlokh Institute of Physical Optics, Lviv, Ukraine
Jan Dlugosz University in Czestochowa, Czestochowa, Poland
A. Ingram
Opole University of Technology, Opole, Poland
© Springer International Publishing AG, part of Springer Nature 2018
O. Fesenko, L. Yatsenko (eds.), Nanochemistry, Biotechnology, Nanomaterials,
and Their Applications, Springer Proceedings in Physics 214,
https://doi.org/10.1007/978-3-319-92567-7_32
499