Titanium

Today’s pet peeve: when a thing in a story is described as super-strong because it’s made of titanium.

(To elaborate, titanium is actually weaker than steel by a fair margin. Its primary virtue as a structural material is that it’s extraordinarily strong for a low-density metal; or, in other words, it’s very light relative to how much structural strength it brings to the table. That’s why it’s used in aerospace applications, where every ounce counts. Strong for its weight doesn’t mean strong in absolute terms, though. You absolutely wouldn’t make personal armour out of the stuff - that’d be like making armour out of aluminum.)

phys.org
Lab discovers titanium-gold alloy that is four times harder than most steels
"It's four times harder than pure titanium, which is what's currently being used in most dental implants and replacement joints."

Titanium is the leading material for artificial knee and hip joints because it’s strong, wear-resistant and nontoxic, but an unexpected discovery by Rice University physicists shows that the gold standard for artificial joints can be improved with the addition of some actual gold.

“It is about 3-4 times harder than most steels,” said Emilia Morosan, the lead scientist on a new study in Science Advances that describes the properties of a 3-to-1 mixture of titanium and gold with a specific atomic structure that imparts hardness. “It’s four times harder than pure titanium, which is what’s currently being used in most dental implants and replacement joints.”

Morosan, a physicist who specializes in the design and synthesis of compounds with exotic electronic and magnetic properties, said the new study is “a first for me in a number of ways. This compound is not difficult to make, and it’s not a new material.”

In fact, the atomic structure of the material—its atoms are tightly packed in a “cubic” crystalline structure that’s often associated with hardness—was previously known. It’s not even clear that Morosan and former graduate student Eteri Svanidze, the study’s lead co-author, were the first to make a pure sample of the ultrahard “beta” form of the compound. But due to a couple of lucky breaks, they and their co-authors are the first to document the material’s remarkable properties.

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Lab discovers titanium-gold alloy that is four times harder than most steels

Titanium is the leading material for artificial knee and hip joints because it’s strong, wear-resistant and nontoxic, but an unexpected discovery by Rice University physicists shows that the gold standard for artificial joints can be improved with the addition of some actual gold.               

“It is about 3-4 times harder than most steels,” said Emilia Morosan, the lead scientist on a new study in Science Advances that describes the properties of a 3-to-1 mixture of titanium and gold with a specific atomic structure that imparts hardness. “It’s four times harder than pure titanium, which is what’s currently being used in most dental implants and replacement joints.”

Morosan, a physicist who specializes in the design and synthesis of compounds with exotic electronic and magnetic properties, said the new study is “a first for me in a number of ways. This compound is not difficult to make, and it’s not a new material.”

In fact, the atomic structure of the material—its atoms are tightly packed in a “cubic” crystalline structure that’s often associated with hardness—was previously known. It’s not even clear that Morosan and former graduate student Eteri Svanidze, the study’s lead co-author, were the first to make a pure sample of the ultrahard “beta” form of the compound. But due to a couple of lucky breaks, they and their co-authors are the first to document the material’s remarkable properties.

Read more.

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my boyfriend bought me this beautiful titanium aura Quartz today, it takes my breath away!
Associated with the third eye and spiritual insight, titanium aura Quartz is known to help intensify out-of-body experiences and astral projection.
the energy in this stone is powerful and mood uplifting.

Little anatometal flower anodized to match the rest of her jewelry. Done by @kungpow_cory on @katherinebritton yesterday afternoon #goodquality #anatometal #silverdale #aperturepiercing #bodyjewelry #kitsapcounty #kitsap #poulsbo #titanium #safepiercing #anodized #360 (at Aperture Professional Piercing and Fine Jewelry)

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I did a Titanium cover because it’s 1am so what else would I do?

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