کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5438142 | 1398181 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A more representative mechanical testing of green state investment casting shell
ترجمه فارسی عنوان
یک تست مکانیکی بیشتر از پوسته ریخته گری سرمایه گذاری سبز
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کلمات کلیدی
مشخصات مکانیکی، سرامیک، حرارت درمانی، ریخته گری سرمایه گذاری، پیری سیلیکا
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
Treating the shells after initial de-waxing to simulate the conditions in the autoclave by either boiling in water, steaming above water or autoclaving at 180 °C and 0.8 MPa caused changes in the reported flexural strength. For samples initially de-waxed by autoclave the strength was reduced, boiling caused the greatest strength reduction and re-autoclaving gave the least change. Testing wet always gave lower strengths compared to dry. However, initial dry strength was never regained on further drying. The samples prepared by refrigeration lost strength when boiled or steamed but gained strength on autoclave treatment. The strength built to be 57% of the samples de-waxed by autoclave in the dry state. This occurred because the sol cured; however, the shells being essentially free from wax never gained the strength of the samples de-waxed initially by autoclave.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 1, Part A, January 2017, Pages 268-274
Journal: Ceramics International - Volume 43, Issue 1, Part A, January 2017, Pages 268-274
نویسندگان
Kevin Lee, Stuart Blackburn, Stewart T. Welch,