Effects of P₂O₅ and sintering temperature on morphological, physical, and mechanical properties of SiO₂-Na₂O-CaO-P₂O₅ glass-ceramic
The great varieties of compositions and microstructures with specific technological properties have allowed glass-ceramics to be used in a wide range of applications. Materials fabricate from vitreous and ceramic wastes nowadays have been widely used in order to minimize the cost of production...
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis |
| Language: | English |
| Published: |
2018
|
| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/69511/1/ITMA%202018%209%20-%20IR.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
my-upm-ir.69511 |
|---|---|
| record_format |
uketd_dc |
| spelling |
my-upm-ir.695112019-11-11T01:40:31Z Effects of P₂O₅ and sintering temperature on morphological, physical, and mechanical properties of SiO₂-Na₂O-CaO-P₂O₅ glass-ceramic 2018-01 Baharuddin Pallan, Nur Fadilah The great varieties of compositions and microstructures with specific technological properties have allowed glass-ceramics to be used in a wide range of applications. Materials fabricate from vitreous and ceramic wastes nowadays have been widely used in order to minimize the cost of production, eco-friendly materials, and reduce the landfill disposal matters. SiO₂-Na₂O-CaO-P₂O₅ (SNCP) composition was selected since lack of study has been discussed on SNCP glass-ceramic from waste material. This approach and opportunity have been taken to investigate further about the materials properties and compare with previous study. The main waste raw materials used are clam shells (CS) and soda-lime-silica (SLS) glass bottle. There are four types batch formulation of SNCP glass-ceramic that have been fabricated via conventional melt-quenching technique and solid state sintering. Each type of SNCP series were varied with different NaCO₃ to P₂O₅ weight percentage and samples were sintered at temperature 550−950 °C. Samples were sintered to discover effect sintering temperature evolving on morphological, physical, and mechanical properties of SNCP are highlighted in this study. The XRD results before sintering have been confirmed the existence of amorphous-crystalline phases on SNCP 1 and SNCP 4 samples while amorphous phase formation corresponding to SNCP 2 and SNCP 3 samples. The full crystallization for SNCP 1 and SNCP 4 started to occur at 650 °C while for SNCP 2 and SNCP 3 at sintering temperature 750 °C. Overall, the glass transition temperature (Tg) started at the range of 550−580 °C and the glass crystallization temperature (Tc) started from 600 °C to 743 °C. The existence of P2O5 in SNCP glass-ceramic is attributed to glass crystallization correlated with high intensity of crystallization peak and enhanced volume nucleation. The microstructural study observation showed SNCP 1 sample at 550−950 °C have agglomerated grain and porosity decreased which produce fine and uniform grain as the sintering temperature increases while the SNCP 2 until SNCP 4 showed less porosity, fine and uniform grain at 550−750 °C produced high densification microstructural. The density values (2.097−2.726 g/cm3) for SNCP 1−SNCP 4 obtained below the glass crystallization temperature at 550−750 °C contribute to excellent mechanical properties. SNCP 3 obtained the highest hardness (631 HV) at 650 °C than SNCP 1 (332 HV). The highest compressive strength in SNCP 1 (free- P2O5) is 49.66 MPa with Young’s modulus value 0.678 GPa at sintering temperature 650 °C while SNCP 3 obtained the highest compressive strength (33.44 MPa) with Young’s modulus value 0.882 GPa. Both samples have higher Young’s modulus values when comparing from previous study (0.05−0.5 GPa) for the cancellous bone implantation. The influence of morphological and physical properties on SNCP 3 sample at sintering temperature 650 °C contribute to excellent mechanical strength properties. Glass-ceramics - Mechanical properties 2018-01 Thesis http://psasir.upm.edu.my/id/eprint/69511/ http://psasir.upm.edu.my/id/eprint/69511/1/ITMA%202018%209%20-%20IR.pdf text en public doctoral Universiti Putra Malaysia Glass-ceramics - Mechanical properties |
| institution |
Universiti Putra Malaysia |
| collection |
PSAS Institutional Repository |
| language |
English |
| topic |
Glass-ceramics - Mechanical properties |
| spellingShingle |
Glass-ceramics - Mechanical properties Baharuddin Pallan, Nur Fadilah Effects of P₂O₅ and sintering temperature on morphological, physical, and mechanical properties of SiO₂-Na₂O-CaO-P₂O₅ glass-ceramic |
| description |
The great varieties of compositions and microstructures with specific technological
properties have allowed glass-ceramics to be used in a wide range of applications.
Materials fabricate from vitreous and ceramic wastes nowadays have been widely
used in order to minimize the cost of production, eco-friendly materials, and reduce
the landfill disposal matters. SiO₂-Na₂O-CaO-P₂O₅ (SNCP) composition was
selected since lack of study has been discussed on SNCP glass-ceramic from waste
material. This approach and opportunity have been taken to investigate further about
the materials properties and compare with previous study. The main waste raw
materials used are clam shells (CS) and soda-lime-silica (SLS) glass bottle. There are
four types batch formulation of SNCP glass-ceramic that have been fabricated via
conventional melt-quenching technique and solid state sintering. Each type of SNCP
series were varied with different NaCO₃ to P₂O₅ weight percentage and samples were
sintered at temperature 550−950 °C. Samples were sintered to discover effect
sintering temperature evolving on morphological, physical, and mechanical
properties of SNCP are highlighted in this study. The XRD results before sintering
have been confirmed the existence of amorphous-crystalline phases on SNCP 1 and
SNCP 4 samples while amorphous phase formation corresponding to SNCP 2 and
SNCP 3 samples. The full crystallization for SNCP 1 and SNCP 4 started to occur at
650 °C while for SNCP 2 and SNCP 3 at sintering temperature 750 °C. Overall, the
glass transition temperature (Tg) started at the range of 550−580 °C and the glass
crystallization temperature (Tc) started from 600 °C to 743 °C. The existence of P2O5
in SNCP glass-ceramic is attributed to glass crystallization correlated with high
intensity of crystallization peak and enhanced volume nucleation. The
microstructural study observation showed SNCP 1 sample at 550−950 °C have
agglomerated grain and porosity decreased which produce fine and uniform grain as
the sintering temperature increases while the SNCP 2 until SNCP 4 showed less
porosity, fine and uniform grain at 550−750 °C produced high densification
microstructural. The density values (2.097−2.726 g/cm3) for SNCP 1−SNCP 4 obtained below the glass crystallization temperature at 550−750 °C contribute to
excellent mechanical properties. SNCP 3 obtained the highest hardness (631 HV) at
650 °C than SNCP 1 (332 HV). The highest compressive strength in SNCP 1 (free-
P2O5) is 49.66 MPa with Young’s modulus value 0.678 GPa at sintering temperature
650 °C while SNCP 3 obtained the highest compressive strength (33.44 MPa) with
Young’s modulus value 0.882 GPa. Both samples have higher Young’s modulus
values when comparing from previous study (0.05−0.5 GPa) for the cancellous bone
implantation. The influence of morphological and physical properties on SNCP 3
sample at sintering temperature 650 °C contribute to excellent mechanical strength
properties. |
| format |
Thesis |
| qualification_level |
Doctorate |
| author |
Baharuddin Pallan, Nur Fadilah |
| author_facet |
Baharuddin Pallan, Nur Fadilah |
| author_sort |
Baharuddin Pallan, Nur Fadilah |
| title |
Effects of P₂O₅ and sintering temperature on morphological, physical, and mechanical properties of SiO₂-Na₂O-CaO-P₂O₅ glass-ceramic |
| title_short |
Effects of P₂O₅ and sintering temperature on morphological, physical, and mechanical properties of SiO₂-Na₂O-CaO-P₂O₅ glass-ceramic |
| title_full |
Effects of P₂O₅ and sintering temperature on morphological, physical, and mechanical properties of SiO₂-Na₂O-CaO-P₂O₅ glass-ceramic |
| title_fullStr |
Effects of P₂O₅ and sintering temperature on morphological, physical, and mechanical properties of SiO₂-Na₂O-CaO-P₂O₅ glass-ceramic |
| title_full_unstemmed |
Effects of P₂O₅ and sintering temperature on morphological, physical, and mechanical properties of SiO₂-Na₂O-CaO-P₂O₅ glass-ceramic |
| title_sort |
effects of p₂o₅ and sintering temperature on morphological, physical, and mechanical properties of sio₂-na₂o-cao-p₂o₅ glass-ceramic |
| granting_institution |
Universiti Putra Malaysia |
| publishDate |
2018 |
| url |
http://psasir.upm.edu.my/id/eprint/69511/1/ITMA%202018%209%20-%20IR.pdf |
| _version_ |
1747812710345605120 |