I have one doubt in Heat transfer. If we keep the sealed container in a cold chamber of-50deg-centigrade at what time the inside temperature reaches ?

Please give answer to my question.

06 July 2019 1,508 3 View

Cell arrangement construction in center hole thermal battery?

how is the cell construction in center hole thermal battery.means what is the diameters of anode,cathode and heat pellets and separator.

31 December 2018 9,667 0 View

How to overcome friction between die wall and powder particle ?

we can't use any lubricant because here we can't use any liquid.

10 November 2018 867 4 View

What are the inorganic binder materials for powder metallurgy to produce uniform size after compaction?

we need binding material to produce uniform compaction and that binding materials will not produce gas.

08 September 2018 1,404 3 View

What is the suitable binder can be added to the iron powder to produce uniform in size and green strength?

we are working on thermal batteries in that we use different powders to make pellets.But the pellet is in not uniform and not green strength.what is the suitable binder can be added to the iron...

08 September 2018 847 0 View

Optimum die design for powder compaction to get uniform pellets?

i need this information to get uniform pellets

08 September 2018 776 3 View

Actually we use single action pressing by using this press to get uniform thickness of the compact?

Our thickness range up to 1.5mm.is there machine or die problem to not get the uniform thickness or powder problem we are pressing manual and filling powder is also manual in die.tell me the...

08 September 2018 2,299 1 View

How much pressure is applied to make the pellet have green strength and achieve thickness upto 1 mm ?

we use weight 0.5 to 3 gr.In this range we have to get green strength and our thickness range is 0.1 to 1mm .in this range how much pressure is required to make the pellet is uniform

07 August 2018 5,082 1 View

What is the reason for not getting uniform pellets in hydraulic powder compaction pressing?

tell me that reason

07 August 2018 3,885 1 View

How much load should be applied for a making an pellet in uniform and green strength?

How to calculate pressure in powder compaction pressing by knowing of weight of material and thickness and diameter in theoritical.

07 August 2018 9,614 6 View

What is the status of bread making and more bakery foods with the use of insect flour/powder?

Insects have been consumed by human diet since prehistoric times. At present, the idea of looking at insects as food has been getting traction worldwide, also in response to increasing food...

03 March 2021 6,223 5 View

How to grow E.coli on the low salt LB agar plate with 50 or 100ug/ml of Blasticidin?

Hello, I would like to ask how to grow E.coli which resists 50 or 100ug/ml of Blasticidin. I have tried many methods by using low salt Luria-Bertain(LB) agar plate. However, no colonies grow. Let...

01 March 2021 2,027 2 View

What is involved in morphological changes of SEM images of a substance?

In the sem analysis of CaCO3 nanaoparticles, the morphology images showed spherical shaped particles but the proposed morphology for these type of nanoparticles is trigonal. I prepared the...

01 March 2021 1,960 4 View

Is there a method of determining feed digestibility without the need to re-pellet the feed?

I am aiming to determine the ADC values of a commercial fish feed, but I do not have a steam pelleter or extruder available to me. Ideally, the pellets could be coated with some inert marker....

28 February 2021 7,967 3 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View

Stress/strain tensors decomposition ???

25 February 2021 6,760 1 View

Is is possible to pole with corona poling pellets of the sample material instead of thin films?

As it is highly probable that pellets will have a higher degree of air gaps and voids than thin films, is it possible to pole the samples with corona poling nevertheless? Or is there the...

24 February 2021 1,349 1 View

Have anyone checked before Cyclic voltammograms of intial ITO substrate and E-teck?

As a beginner in electrochemistry, I tried to obtain cyclic voltamograms of commercial anatase powder deposited on an ITO substrate or on Eteck. After several attempts, I noticed that my cyclic...

23 February 2021 3,175 3 View

How to reduce static electricity of powder after lyophilization?

I am working on synthesizing and then purifying peptides using the SPPS system. After purification of the peptide, the peptide powder is obtained using a freeze dryer. When measuring the powder,...

22 February 2021 10,099 5 View

What kind of steel moulds are used for hot pressing metal powders?

My main concern is that the metal powders should not weld to the mold surface and I should easily be able to eject out the pressed samples. I am looking for alternative for graphite moulds. The...

22 February 2021 2,965 4 View