«titan qotishmalariga plazma-elektrolitik oksidlanish usuli bilan qoplama olish uchun namunlar tayyorlash» - bet 2

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ФОРУМ МОЛОДЫХ УЧЕНЫХ №6(82) forum-nauka.ru
ravishda voltmetr va ampermetr, elektrolit harorati – termometr bilan boshqarildi.
Oqim manbai sifatida ТЕР-100/460Н-2-2УХЛ4 tiristorli konvertor ijobiy
kutupluluk oqimining impulsli shakli bilan ishlatilgan.
1 - rasm. Namunalarni anodlash uchun o'rnatish sxemasi. 1-issiqlikka chidamli
shisha stakan, 2 – katod, 3-magnit elementli magnit aralashtirgich, 4-voltmetr, 5-
ampermetr, 6-termometr, 7- ТЕР4-100/460Н-2-2УХЛ4 tiristor birligi,
8-elektrolit, 9-qayta ishlangan namuna.
Namunalardagi oksid qatlamlari galvanostatik va impuls rejimlarida hosil
bo'lgan. Galvanostatik rejimda oqim zichligi Ia=0,08 A/sm2 ni tashkil etdi. Impuls
rejimida anod oqimining zichligi 0,08 A / sm2 ga teng bo'lib, katod oqimi anod
oqimining ¼ qismidan 1,5·Ia gacha o'zgartirildi. Uchqun oksidlanishi paytida
elektrolitning harorati 26°C dan oshmaydi.
Qayta ishlashdan so'ng, qoplamali namunalar oqadigan, keyin distillangan suv
bilan yaxshilab yuviladi va 20-70°C haroratda havoda quritiladi.
Uchqun kuchlanishining kattaligi anod yuzasida birinchi uchqunlarning
paydo bo'lishi yoki egri chiziqlar tahlilidan vizual ravishda baholandi (bog'liqlikning
boshida elektrodlardagi kuchlanish chiziqli vaqtdan farq qiladi). Q* (Кл·л
-1
)
elektrolitini ishlab chiqish uchun ma'lum bir vaqtda elektrokimyoviy hujayra orqali
o'tkazilgan eritma hajmiga normallashtirilgan elektr energiyasi qabul qilindi.
Foydalanilgan adabiyodlar.
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ФОРУМ МОЛОДЫХ УЧЕНЫХ №6(82) forum-nauka.ru
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