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Questions related from Cai Jiawei
How to dissolve styrene-acrylic resin pellets(BASF Joncryl684) into a water/1,2-butanediol mixed solution to prepare an emulsion?
30 October 2023 2,694 0 View
I dissolved the styrene acrylic resin (molecular weight 1500): 1,2-butanediol = 3:5（weight ratio）, added the emulsifier, and then slowly added it to the water containing the emulsifier using a...
28 October 2023 3,322 0 View
Is it possible to prepare polymethylmethacrylate from methacrylic acid and methanol monomers?
30 May 2023 2,889 1 View
Why does the water-based binder based on polyethyleneimine turn blue when placed in the air for a period of time?
09 May 2023 6,378 0 View
How to explain the expansion of samples during densification (95-98%) of H13 alloy prepared by binder jetting?
21 March 2023 409 2 View
For sintered 18Ni300, under the sintering condition of low vacuum degree, the grain boundary is oxidized. The attachment is XRD and EDS test result. Is the darker second phase mainly Fe2TiO4?
03 March 2023 9,327 2 View
For sintering 18Ni300 fabricated by binder jetting method, we adopted the sintering conditions of 1460°C and 50mtorr vacuum (oxygen partial pressure is 0.000067Pa), and the sample sample achieved...
02 March 2023 1,381 0 View
The process for obtaining details by sintering H13 steel is known and studied by many authors. The problem is actually getting a porous structure. It depends on the size of the particles in...
28 February 2023 2,084 0 View
How may the problem be resolved if carbides are generated on the grain boundaries of sintering-prepared H13 alloy and the elongation is less than 5%?
17 February 2023 5,418 3 View
Why does the tensile strength of the H13 alloy produced by binder jetting using 5-25 μm at 1380 °C and 50mtorr decrease from 1500 MPa to 400 MPa as the sintering time increases from 2h to 20h,...
16 February 2023 1,404 1 View
I prepared a pure tungsten green body (powder particle size 5-25 μm) by binder jetting, and the density of the green body is 53%. At what temperature should it be sintered to obtain a density of...
07 December 2022 3,354 2 View
The sintering of 18Ni300 will encounter the enrichment of titanium and aluminum elements on the grain boundaries. Is there any possible reason? How to avoid its occurrence to achieve densification?
31 July 2022 7,006 1 View
What is the condition for Zener relationship during sintering? Solid State Sintering?
01 January 1970 3,580 0 View
