Emenike Okonkwo

5 Questions 5 Answers 0 Followers

Questions related from Emenike Okonkwo

Can plant extracts or essential oils be used as organic reagents for the recovery of transition metals like Cobalt?

Extract from plants have been extensively used to synthesize metallic and non-metallic nano-particles. However can they be used as eco-friendly materials for the recovery of toxic metals? Can...

01 January 2020 6,203 3 View

Can Quenching and Partitoning apply to aluminum alloys?

Quenching and partitioning is an operation used in develop of TRIP, AHSS steels with the whole point of inducing more than one phase. However can't it be applied to precipitation hardenable...

11 November 2018 3,732 3 View

What step by step procedure should i use in preparing nanoclay particles from a local clay using sol gel process or acid hydrolysis?

I want to use sol gel or acid hydrolysis to prepare nanoclay particles from a locally sourced clay. I am looking at comparing the two processes. However i have not been able to come across some...

02 February 2018 4,718 3 View

Can the pore space of activated carbon used for purification purpose increase in size during service?

If an activated carbon in service has a pore size of 3 micron, can it change to about 4 microns under continual usage and if yes, is there a way to revert it back to the original pore size. Thanks

02 February 2017 4,914 4 View

Step Quenching to develop multi-phased steel?

Is it possible to quench a steel sample from a 800 degrees celsius to 300 degrees celsius within a time frame less than 100 seconds by placing taking it out and placing it in another furnace whose...

08 August 2016 7,532 5 View