Eu tambem estudo!!

Fala Galeura,

Pra quem achou q a vida na California eh soh mordomia, criei esse blog pra mostrar que aqui tambem tem estudo e laboratorios muito produtivos *---*

 Para isso, um cafe bem reforcado :D

 Biblioteca - estudos pra Supply Chain and Logistics Management

 Study Sessions for MATE232

Agora vai!

 Studying for finals on dead week

Library @12am x.x

 Field trip to Next Intent *---*

Agora um pouco de laboratorio :D ... 

Laboratory 1: Study of solidification rate on size and shape of Bi crystals

 O primeiro eh sobre o estudo da taxa de solidificacao de bismuto liquido no tamanho e formato de cristais.

Goal:

Agora a nossa vez:

 Learn by doing: Bismuth Crystals 

 Quase!

 

 Here they are: slow solidification rate, small deltaT, less undercooling, larger crystals

Rapid solidification, Big deltaT and undercooling, small crystalls

Laboratory 2: Bi-Sn alloys for lead free solders

Entao no segundo laboratorio nos fizemos duas ligas de bismuto-estanho para substituir as soldas que usam chumbo, Bi-65 ang 10at%Sn. Cortamos, fizemos DSC e DRX, analise microestrutural e tudo :D

Cutting sample: diamond saw

Bi-Sn lead free solder in ABS 3D printed sample holder for XRD analysis, SIM ELES TEM 2 IMPRESSORAS 3D AQUI *-*

Sketching of possible microstructures present on the alloys

DSC mostrando temperaturas de solidificacao de fase proeutetica e eutetica

Difracao de raios x da amostra confirmando elementos e mostrando relative amounts of Bi and Sn

Laboratory 3: Metallography of a Steel sample

Sample 57

Learn by doing - cutting

Megan

Regan

Sample

Me + sparks *-*

sample 2

Megan the coolest safety glasses *-*

Mounting in bakelite

Mounted and grinded sample

Polishing

 Hardness testing HRC:

Other Samples

Transverse section scan, apparent hardening of edges in comparison to the center

Surface: more errors than data due to oxide layer

Results

Optical microscopy of the microstructure, probably fine martensite

Agooora um pouco de teaching :DD

Mini Maker fairytale - ensinando as criancas o gosto por engenharia de materiais

Cozinhando futuras palmilhas de cristal para simular a fragilidade dos sapatos da cinderela (levamos 4 horas pra fazer... acucar, agua, charope, termometro e mta paciencia)

Mellanie

There they are :D

Presentatiooon :

arthur e jepavao prestigiando o trabalho ahaha

Fairy tale #1: three little pigs and the materials selection

Fairy tale #2: Cinderella and the brittle "crystal heels" 

Goldilocks and the better bowl to keep the heat on the oatmeal 

Rapunzel and the resistance of a human hair

Mari testando o experimento ahaha

Nestor explaining

Girl making a composit house. The person that built a house strong enough to stand a strong wind would receive a kiss ( Hershey's chocolate)

graphite circuit - it works!!! 

 Cinderella shoes failed: heat melted the sugar ahaha

First kid approach

They are comming

Whaaat - success!!

Or not: they didn't get the idea of materials selection...just wanted to do something that would stand the wind and get a chocolate...ok then, we need a change in the approach! xD #teachingfail

Back to laboratories: FAILURE ANALYSIS - real life problems *-*

Heater samples

 Non destructive testing: dye penetrant for superficial identification of defects:

Heater for gas purifier

epoxi mounting

ratchet marks of fatigue failure: heating and cooling caused expansion and contraction thus implying in fracture

Resumo do estudo de caso do copper seal failure

Resumo do estudo de caso do stainless steel heater

That is it guys, I hope you enjoyed it, comment if you liked or not, if it was nerd enough for a post  ahaha

Also, i'll force you to read in english from here on ;D, thus be prepared.