Probably titanium since it is a metal, which means it is flexible and soft, while a diamond is solid and unaltered by stress or other factors, until breaking.
Diamond is the hardest natural mineral. Your question implies strength, not hardness. Strength implies molecular cohesion. You could devise an experiment to pull a diamond apart, but it would be a nearly impossible experiment, because anything you attach to a diamond would not be strong enough to effectively pull the diamond apart.
Diamond has an extremely strong covalent bonding between carbon atoms; today diamond is not considered the hardest material, Today the hardest material is Aggregated diamond nanorods.
diamond is the hardest material and if it is sharpened , then it is the sharpest material
Diamond ( an allotrope of carbon) is the hardest material known.
Diamond is the earths hardest material.
Diamond is the second hardest material found in nature. It was always thought to be the hardest, but scientists have recently discovered a material called Ionsdaleite which is 58% harder than Diamond.
No. Diamond is the hardest mineral and it is not malleable or plastic.
Diamond can withstand more heat without being melted. You can shatter a diamond with a bullet/blunt object with a medium amount of force. A bullet/blunt object would not make a single imprint on Titanium. For proof watch http://www.youtube.com/watch?v=e_uO7PU8l8Y (A man forging a titanium knife). At the 8:37 mark, he takes a sledgehammer with a six pound iron head on it, and smacks the knifeblade (which is not even 1 CM thick) sideways as hard as he can, and not a single scratch. Titanium is denser than diamond even though it is classified as a low-density metal. Diamond comes from the Greek word Adamas (αδάμας), which means "Invincible". Titanium comes from the word "Titans", which in Greek mythology were incredibly powerful beings that challenged and defeated some Greek gods. Its a really close call.
Diamond is the hardest natural material known. It is composed of carbon atoms arranged in a strong crystal lattice structure, which gives it its extreme hardness.
The hardest naturally occurring substance is called diamond. It is a form of carbon.
No, Obsidian is the sharpest material on earth. Diamond however, is the hardest.
The hardest material in the world is Wurtzite, it is very much same as that of a diamond but is more complex than diamond and thus makes it stronger than diamond. Wurtzite boron nitride becomes 80% stronger after the re-orientation process, and this makes it the hardest substance found on earth.