Hi Aditi, I tihink you could search values in papers, also you could try in www.matweb.com for properties of materials, and finally you could use nanoindentation for obtain modulus (and other props.) of your material.

Hi E. Garcia-Sanchez,

Thank you for suggestion!

I did not find any paper. I think I have to assume some value for this material. In matweb site also, I did not find the value I want.

Poisson ratio=0.25

Young’s Modulus

For anhydrous =5GPa By using Synchroton high pressure X-rays

For hydrated = varies containg different % of water

For sample containing1.3% H2O , it is 140 GPa

For details

Fill/ Click :

1. [PDF]Fulltext - DiVA

www.diva-portal.org/smash/get/diva2:233826/FULLTEXT01.pdf

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by O Paulsen - ‎2009 - ‎Cited by 5 - ‎Related articles

the sample CAM5 either the phase C12A7 or the more alumina rich phase. C5A3 would be ...... 18.4. 21.2. 59.9 Ca12Al14O33 (C12A7). Figure 6.11 ...... on a Poisson ratio of 0.25 for all three materials, a Young's modulus of 100. MPa for the CAM10 ... In the calculations an E-modulus of 50 GPa has been applied. Figure 9.5.

Hello Manohar Sehgal,

I want elastic modulus and Poisson's ratio for C12A7, not of CAM5 or CAM10. Is there mention the value of both for C12A7?

[A] Fill/ Click :

Young's Modulus (GPa) and Poisson's ratio of C12A7 (Ca12Al14O33)

Then Reach

1. aluminate cements hydration: Topics by WorldWideScience ...

worldwidescience.org/topicpages/a/aluminate+cements+hydration.html

The hydration of different CA/CA{sub 2} ratios was analyzed by the G-factor quantification. ...... on the changes in the elastic modulus, shear modulus andPoisson`s ratio at ..... The determination of C12A7 presents some variations due to its low ..... were obtained up to 5 GPa by using synchrotron high-pressure X-ray powder ..

For Young's Modulus[ find 5GPa]

Reach and read the last two lines of the following; starting from----.

.

[B] Now for Poisson's ratio

Pls. note the line of the reference already lying with you

(C12A7). Figure 6.11 ...... on a Poisson ratio of 0.25 for all three materials,

Hello Manohar Sehgal,

That Poisson's ratio you are telling for all materials is of La2NiO4, Al2O3 and crystallised BLS and not of C12A7.

And Young's modulus of Calcium Aluminates is generally higher than 100 GPa. So 50 Gpa is not of C12A7 material.

If am not wrong:

[!}i have already made mention of it being 140  but of component 1.3% water:

Pls. see  a line below taken from the first answer:

:[For sample containing 1.3% H2O , it is 140 GPa]

[ii}] In the figure, the calculations  for three compounds are done with  ratio 0.25. ,Ca12A7 being one among the three.

Hello Manohar Sehgal,

Can you mail me that research paper?

 It is a thesis  of  more than 10 K bites with the name given in the attachment.

 You may look in whole thesis if  you find it worth .

But  especially look in-page  51. top 5 th  line to find 1.3% H2O ; read it   wrt  140 GPa  from the references already lying with you. This is what I have correlated. Sorry  If my effort has gone wasted,  

Thank you Manohar Sehgal !

Its Ca12Al14O32(OH)2 phase. And in this thesis, in which page young's modulus value is given?