How to calculate Cp of High entropy ceramics composites
Moderators: Xen, expert, ChenBeier
-
- Newbie
- Posts: 4
- Joined: Sun Jun 26, 2022 9:27 pm
How to calculate Cp of High entropy ceramics composites
Hi All, I am confused How to calculate specific heat capacity (Cp) of High entropy ceramics composites by using neuman-kopp method? is any one know please let me know? thanks in advance
- ChenBeier
- Distinguished Member
- Posts: 1542
- Joined: Wed Sep 27, 2017 7:25 am
- Location: Berlin, Germany
Re: How to calculate Cp of High entropy ceramics composites
You need the specific heat capacity of each component in your ceramic and the mass fraction of each component.
The Neumann Kopp law is here
https://en.m.wikipedia.org/wiki/Kopp%27s_law
The Neumann Kopp law is here
https://en.m.wikipedia.org/wiki/Kopp%27s_law
-
- Newbie
- Posts: 4
- Joined: Sun Jun 26, 2022 9:27 pm
Re: How to calculate Cp of High entropy ceramics composites
I used the method whixh you mentioned but the results are not accurate much difference
- ChenBeier
- Distinguished Member
- Posts: 1542
- Joined: Wed Sep 27, 2017 7:25 am
- Location: Berlin, Germany
Re: How to calculate Cp of High entropy ceramics composites
The method is valid at 25°C, at other temperature it differs.
Get the right mass fraction? What kind of Oxides you have?
Get the right mass fraction? What kind of Oxides you have?
-
- Newbie
- Posts: 4
- Joined: Sun Jun 26, 2022 9:27 pm
Re: How to calculate Cp of High entropy ceramics composites
I am using high entropy ceramic mono and disilicates , even at room temperature the values different which are already mentioned in the literature, so don't know what's wrong with the calculation
Er2O3+Tm2O3+Sc2O3+Yb2O3+8SiO2=4(Er0.25Tm0.25Sc0.25Yb0.2)2Si2O7
For Cp using equation
O.25Cp(Er2O3)+0.25Cp(Tm2O3).......+SiO2
Er2O3+Tm2O3+Sc2O3+Yb2O3+8SiO2=4(Er0.25Tm0.25Sc0.25Yb0.2)2Si2O7
For Cp using equation
O.25Cp(Er2O3)+0.25Cp(Tm2O3).......+SiO2
- ChenBeier
- Distinguished Member
- Posts: 1542
- Joined: Wed Sep 27, 2017 7:25 am
- Location: Berlin, Germany
Re: How to calculate Cp of High entropy ceramics composites
I dont see calculation for mass fraction. You used mole fraction, do you?
Take maybe 1 g of the ceramic and calculate the grams of each oxide by using molar mass.
Take maybe 1 g of the ceramic and calculate the grams of each oxide by using molar mass.
-
- Newbie
- Posts: 4
- Joined: Sun Jun 26, 2022 9:27 pm
How to calculate the density of high entropy ceramics composites?
Hi all,
I want to know how we can calculate the density of high entropy ceramics composites?
unit cell mass and unit cell volume of high entropy ceramics ?
I want to know how we can calculate the density of high entropy ceramics composites?
unit cell mass and unit cell volume of high entropy ceramics ?