Nadiir Bheekhun

12 Questions 56 Answers 0 Followers

Questions related from Nadiir Bheekhun

Is it acceptable to measure the bulk density of a ceramic powder using D = m/v?

Hi everyone,I need to calculate the Hausner Ratio of my samples. My limitation is such that I don't have much powder for each sample (approx 5cm3), I have been able to get a Tapped Density Tester...

04 April 2015 7,223 17 View

What additive can be added to convert hydrophobic ceramic particles to hydrophilic while preparing an aqueous-based solution?

Hi everyone, Could any of you help me with the following issue:Surface modification was carried out with hydrophilic ceramic particles to convert into hydrophobic by replacing the hydroxyl group...

04 April 2015 10,075 16 View

Is it possible to prepare an aqueous-based slurry consisting of a ceramic which is hydrophobic?

Hi everybody, I've come across some discussions and I would be grateful if someone could clarify whether we can prepare a well-dispersed aqueous-based slurry consisting of ceramic particles which...

03 March 2015 1,300 5 View

What is a typical range of %wt solid fraction needed to obtain a concentrated ceramic slurry?

Hi all,Can anyone suggest me what would be a typical range of %wt solid fraction needed to obtain a concentrated ceramic slurry for spray-drying? I have come across some works wherein 50 %wt of...

03 March 2015 4,760 19 View

What are the thermal tests that can be done on Polymer Matrix Composites?

Hi, Attached is a picture of an aircraft graded carbon/epoxy composite. Out of curiosity, what are the possible thermal tests and hence properties that can be investigated from such samples? Any...

03 March 2015 7,774 25 View

How can I obtain agglomerates with a wider particle size distribution using the spray-drying technique?

While preparing an agglomerate of ceramics using via the spray-drying of an aqeous-based slurry, how would one obtain a wider particle size distribution if necessary? Thank you.

03 March 2015 4,631 7 View

Does a nanostructured material at micron-size produce a bimodal coating structure when thermally sprayed?

Greetings,I've come across queries regarding nanostructured thermally sprayed coatings and I'd like to clear my doubts to some extent. It is clear enough that to obtain a nanostructured coating,...

11 November 2014 2,929 21 View

How do you choose the proper temperature and mixing time while preparing a ceramic-based slurry?

Preparation of optimum ceramic slurries can be considered as the first critical step in many ceramic processes. Some significant factors in processing ceramic slurries are mixing speed, time,...

11 November 2014 7,377 3 View

What are the existing approaches to improve the thermal resistance of Polymer Matrix Composites?

Hi everyone, I'd like to know what are the various methods to improve the thermal resistance of polymer matrix composites, especially the epoxy-based ones. Normally, conventional PMCs creep or...

10 October 2014 5,413 9 View

Can anyone advise me on the evaluation of the effect of thermal cycling on thermal stability & mechanical properties of plasma sprayed coatings?

I'd like to evaluate the effect of thermal cycling on the thermal stability and mechanical properties of a ceramic plasma sprayed coating. In that case, what essential factor(s) could be...

09 September 2014 5,277 8 View

What are the criteria to be considered when choosing a binder?

I want to combine some micron-sized ceramic particles with a 'fire-resistive' binder to form a slurry which can be spray-dried afterwards. In that case, what are the important factors that I need...

03 March 2014 4,480 4 View

When developing plasma-sprayed coating using newly-developed spray material, what relationship is worthy for modeling using CFD, prior to experiment?

Modelling of plasma sprayed coatings

03 March 2014 4,339 2 View