Table 4 Chemical composition of PP and CCP.

From: Taguchi optimization and modelling of stir casting process parameters on the percentage elongation of aluminium, pumice and carbonated coal composite

Chemical compound

PP

CCP

SiO2

45.63

41.22

V2O5

0.15

0.24

Cr2O3

0.01

0.26

MnO

0.24

0.36

Fe2O3

17.24

12.75

Co3O4

0.09

0.09

Nb2O3

0.05

0.04

MgO

ND

4.78

CuO

0.06

0.21

P2O5

0.84

ND

SO3

0.14

13.32

CaO

9.83

3.55

K2O

5.37

1.21

BaO

0.26

0.22

Al2O3

15.53

13.42

Ta2O5

0.02

0.04

TiO2

3.54

5.93

Cl

0.73

1.85

ZrO2

0.21

0.35

Ag2O

0.003

0.04

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