Results 221 to 230 of about 5,237 (261)
Some of the next articles are maybe not open access.
2019
The prehistoric civilizations of Oman are strongly connected with the exploitation and the use of copper, the reddish-colored metal that was first metal to be smelted from its ore. Oman, rich of copper ore deposits, was a basic source for the ancient Near East: the Sumer texts named the country Magan, a land where precious copper was found in fabulous ...
openaire +3 more sources
The prehistoric civilizations of Oman are strongly connected with the exploitation and the use of copper, the reddish-colored metal that was first metal to be smelted from its ore. Oman, rich of copper ore deposits, was a basic source for the ancient Near East: the Sumer texts named the country Magan, a land where precious copper was found in fabulous ...
openaire +3 more sources
Copper erosion: The influence of metallurgy on copper dissolution: The rate of copper dissolution
2008Lead-free solder alloys, particularly those with higher silver and lower copper contents, have been shown to react with the copper on circuit boards, dissolving the copper much more quickly than tin-lead solders. Rapid dissolution of copper into tin-rich alloys can create hidden defects and reliability issues, and as copper is washed off the PCB, the ...
Shea, Chrys +7 more
openaire +1 more source
Potential environmental pollution from copper metallurgy and methods of management
Environmental Research, 2021Anna Witek-Krowiak +2 more
exaly
Maximisation of extraction efficiencyin copper metallurgy
2016Мідна виробництво складається з двох основних стадій: плавлення матеріалу і перетворення, що супроводжуються великими втратами міді. Окремі дослідження збільшення продуктивності, на цих двох стадіях не дали добрих результатів до теперішнього часу. Ця робота пропонує новий підхід до проблеми підвищення продуктивності виробництва міді.
Pop, Viorel +4 more
openaire +1 more source

